Essays on Decimal

“If it has ‘science’ in its name, it ain’t (Minnick).” Those words were said to this writer by the smartest person he ever knew personally, a man with PhDs in Mathematics and Physics, a true scientist. He went on to explain that science, if it is science, can be reduced to mathematics and then can predict. “Science can generate electricity or flatten cities,” he said. The problem, of course, is that whenever one deals with the “soft sciences,” political science or economics (the dismal science) or sociology or history or any of the disciplines that are housed in ...

Assignment 3

Assignment 3

QUESTION 1 (1 point)

a) Statistical combination of the results of two or more studies

QUESTION 2 (1 point)

Figure 2 of the Jordan et al., meta-analysis depicts a forest plot illustrating the estimates of the association between hysterectomy and ovarian cancer. How many of the individual studies (in figure 2) reported statistically significant reductions in the risk of ovarian cancer in women with hysterectomy, compared to women without hysterectomy? Ans) There were 20 individual studies that reported statistically significant reductions in the risk of ovarian cancer in women with hysterectomy, compared to women without hysterectomy.

QUESTION 3 (1 point)

How would you interpret the overall summary estimate (relative ...

Al-Khwarizmi is the great mathematician, astronomer, geographer and the founder of classical algebra. Although the life of Al-Khwarizmi is little known, he left us his works that cover different areas of knowledge: mathematics, astronomy, geography. Works of Al-Khwarizmi in mathematics are the most know. Two treatises such "The Book about the Indian account" and "Calculation by restoration and reduction" were translated into Latin and served for a long time the basic textbooks on mathematics. The arithmetic treatise of Al-Khwarizmi had an enormous influence on the development of science in the East and then in Europe. This work became the ...

Abstract

The purpose of this research is to analyze the relationship between social networking and face-to-face communication with respect to their influence on the social interaction skills. The first aim of the research has to determine whether there is a causal relationship between use of social networking tools and face-to-face communication behaviors. The research aims to investigate the hypothesis. There will be a statistically significant difference in change/gain scores for communication behaviors between the experimental group and the control group; Face-to-face communication is associated with the students’ social media networking habits (i.e. time spent on social media networking). There will ...

Complete each section below, using the spaces provided. See Assignment 2 and the Assignment 2 Fact Sheet for more information. Part One: Planning a website message (15 marks). Answer the following questions with full sentences:

The specific objective of the letter is to inform about the conditions, after actions, and future precautions/ measures to be taken. Also, it is informative to address the point of contact personnel if there is contact needed to accomplish said operations. 2. Who is your primary audience? The primary audience for this message is those concerned. The people are scheduled to use said areas ...

MATH221

Statistical Concepts: Probability Binomial Probability Distribution Calculating Binomial Probabilities Open a new Excel worksheet. Open spreadsheet In cell A1 type “success” as the label Under that in column A, type 0 through 10 (these will be in rows 2 through 12) In cell B1, type “one fourth” In cell B2, type “=BINOM.DIST(A2,10,0.25,FALSE)” [NOTE: if you have Excel 2007, then the formula is BINOMDIST without the period]

Then copy and paste this formula in cells B3 through B12

In cell C1, type “one half” In cell C2, type “=BINOM.DIST(A2,10,0.5,FALSE)”

Copy and paste this formula in cells C3 through C12

In cell D1 type “three fourths” In cell D2, type “=BINOM.DIST(A2,10,0.75, ...

Generating Data for Formaldehyde Vapor Concentrations at The Long Beach Facility

Formaldehyde (CH20) is a natural occurring, fully organic compound, from the aldehyde family. As such, it is used in a variety of chemical compounds as a synthesis agent in other compounds, most notably glues or adhesives (Reuss, 2002). Unfortunately, as formaldehyde levels increase, serious health concerns rise, most notably that formaldehyde is a known carcinogen, formally identified by the US National Toxicology Program (2011). For the current sample, all numbers were randomly generated via random.org, a random number generator, as if they were taken from the four areas of concern, or strata within the manufacturing area. My input into ...

Question 1

A decimal number is a modified way of expressing a fraction. A fraction shows a number as a part of a whole figure. For example, 2/3 means when a quantity is divided into 3 equal parts we have to take 2 parts of it. When this fraction is expressed in terms of fractions of 10, 100, 100 it becomes a decimal fraction. For example we can write 2/5 as 4/10. Thus 4/10 is decimal fraction. We can write 4/10 as 0.4 . This is a decimal number. In a similar way we can write 13 9/100 as 13.09.

Question 2

PEMDAS stands ...

Abstract

This research study is aimed at investigating how the convenience of electronic resources affects our real-life communication skills. The introduction section includes illustrations of how electronic communication has made a safe haven for many Americans who do not possess face-to-face communication skills. The segment also gives an explanation of the models that people have lately adopted in order to compensate for the inadequacy in face-to-face communication cues. Some of the dependent variables in this research will be the development of compensatory abilities and the degree to which those abilities promote survival. The paper aims at reaching the goals of ...

Combinatorial logic circuits are built from a combination of different logic gates with a set of input and a logic network without memory that operates on the inputs to produce the outputs. Comparator: Comparators are combinatorial logic circuits that are used to check whether a binary value is greater than, less than or equal to another binary value. A comparator is shown in figure 1. Figure 1: A comparator Flip-flop: Flip flops are sequential logic circuits that permit the storage of information on it and has two outputs (Q and Q’) that are complement of each other i.e. when ...

The website contains an explanation of the overall relationship between, decimals, fractions, and percentages. It further provides background points for teaching. The website provides a description of the relationship between the three mentioned mathematical arguments.

It explains that decimals are fractions that have been written in different way and that fractions are decimals written in different way i.e. decimals represents fractions in a different writing. For example, 1/100 =0.01 and 4/1000= 0.004. This means that the fraction 1/100 is equivalent to the decimal 0.01 and that the fraction 4/1000 is equivalent to the decimal 0.004.

The website helps in understanding of ...

It is not a secret that determining the sample size that is optimal for a study is a very responsible and difficult process that requires considerable research. The main of sample size determination is finding such a number of subjects so as to make it possible to get statistically significant results. This process is not easy due to a number of variables that it involves. In particular, there are four of them that will be considered below. The first is the desired level of statistical power. His indicator can be interpreted as the probability that effect of treatment will be detected if there is ...

When computer programmers write decimal numbers, they use positional notation technique. Every number in the base is multiplied by a particular power of 10 subject to the position of the integer. For instance 843= 8*102+4*102+3*100 =8*100+4*10+3*1 =800+40+3 The rightmost digit for whole numbers is the one’s position (100=1). The numeral in this position indicates the number of ones in the number. To the left, the next position is tens, followed by hundreds, thousands, in that order. In decimal systems, there exist ten values ...

Dissertation: Tuberculosis

Abstract Re-established endeavors in tuberculosis (TB) examination have prompted essential new bits of knowledge into the science and the study of disease transmission of this staggering sickness. Yet, despite the present day scourges of HIV/AIDS, diabetes, and multidrug resistance—all of which add to weakness to Tuberculosis—worldwide control of the sickness will remain an impressive test for quite a long time to come. New high-throughput genomics advancements are as of now adding to investigations of TB's the study of disease transmission, near genomics, development, and host–pathogen cooperation. Tuberculosis, or TB, is an irresistible bacterial ailment created by ...

1. Problem Solving Project 1.1. How Mathematical Problem Solving Can Lead to Excellence, Personal Development and Integrity Outside of a Mathematics Classroom The philosophical understanding of the world, its general laws and basic scientific concepts is not possible without mathematics. Mathematical problem solving leads to excellence, personal development and integrity outside of a mathematics classroom. It helps to analyze, compare and classify objects, establish cause-and-effect relations and patterns, build logical chains of reasoning and develop algorithmic thinking. Mathematics allows us to develop some important mental faculties: analytical, deductive (the ability to generalize), critical, forward-looking (the ability to forecast, ...

The Simple Pendulum

Lab Details (Here)

Lab Partner:

(Partner’s Name) The Simple Pendulum

Introduction

The aim of this experiment was to experimentally find the time period of a simple pendulum, and use to compute the local acceleration due to gravity. These values were compared with the theoretical predictions based on the equation, =2πLg , where T is the time period, L is the effective length of the simple pendulum (measured quantity) and g is the local acceleration due to gravity. In order to compute the total error between the predicted and actual values, the effects of all random errors in each measured quantity ...

Python, in comparison with the other programming languages that we use, is user-friendly and easy-to-understand (Lutz, 1996). This is because it has built-in syntaxes that are simple and easy to remember just like “print” for printing, “def” for definition, etc. This programming language also doesn't have endless lines of codes just like in C, C++, and Java. A 100-line code written in C language, for example, can be converted into a 15 to 30 lines of code in Python. Also, it can run on different platforms and operating systems so you don't have any compatibility issues, unlike the others where ...

Introduction

There had been many innovations for developing equipment that could deliver nutrients or even doses of medications inside a person’s body. One of these developed medical devices is the infusion pump. Infusion pumps are used to deliver nutrients and medications, such as antibiotics and pain killers. They can also be used to administer chemotherapy drugs which, if not administered properly, can be the difference between life and death for the patient (Brady). Infusion devices are usually classified based on the power source used and could be either of two types: gravity controllers or infusion pumps. Gravity controllers, which ...

The grade level for which the lesson is designed

This lesson is designed for teaching fifth grade learners on how to deal with mathematic questions that involve the rounding off of numbers to the nearest tenth. This is useful for them because, in their future, they will be dealing with numbers which will require the use of skills of rounding off. Therefore, they should be well equipped on dealing with rounding off of mixed decimals.

The prerequisite concepts and skills students have learned prior to this lesson

There are a few prerequisite concepts and skill that the fifth graders are expected to have learnt in their earlier stages of schooling before this particular lesson. According to Mounts (2011), the first concept ...

Floating point is a numerical-interpretation system in which strings of digits or bits represent real numbers. A system of arithmetic is defined to permit these representations to be manipulated with resultant being similar to the arithmetic operations done over real numbers. The representation uses an explicit designation of where the radix point should be located relative to the string. In computing, fixed-point number representation is a real data type representing a number with a fixed number of digits before and after the radix. The most common way of representing floating-point numbers in computers is the IEEE 754 standards or IEEE floating point. Several ...

<Student’s name> <Professor’s name>

Introduction Pi is a mathematical constant that expresses the ratio of the circumference to the length of its diameter. Denoted by the Greek letter π. First symbol of this number by the Greek letter π was taken by British mathematician Jones in 1706, and it became common after the works of Leonhard Euler in 1737.

This designation comes from the initial letters of the Greek words περιφέρεια - circle, peripherals and περίμετρος - perimeter.

History History of the number π ran parallel with the development of mathematics. Some authors divide the process into 3 periods: the ancient period during which π was studied from the standpoint of geometry, classical era, which ...

Name1Name: Professor Name:Title: AssignmentDate: AssignmentQ2. Find Web sites pertaining to building your own computer. Identify three important factors to keep in mind when buying a motherboard. Websites related to build our own PCs are 1. http://www.buildyourown.org.uk 2. www.pcspecialist.co.uk 3. http://www.computerplanet.co.uk 4. http://www.kitchentablecomputers.com . Three important factors to keep in mind when buying a mother board are 1. What kind of processor we want to use because Intel socket and AMDs socket are different to each other are they are incompatible with each other. 2. The type of the RAM and speed of the RAM should be considered. Whether DDR2 or DDR3 type ...

Taking a closer look at the current student and researcher community, it has been noted that a large proportion of these people have resorted to online content for their inferences. There has been an influx of information finding its way to the internet without the consideration of the end-user. According to my interpretation, I prefer a faster way of information retrieval so that users can be able to obtain the relevant information within the shortest time possible. I have learnt the importance of providing useful information using the smallest number of words possible. This is the only way to evade the ...

DDC and LCC: Key Issues and Challenges in Using Popular Classification Schemes DDC and LCC: Key Issues and Challenges in Using Popular Classification Schemes Classification is the process of sorting or arranging information into categories as defined by classification schemes such as the Dewey Decimal Classification (DDC) and Library Congress Classification (LCC). These cataloging systems are methods on how to organize knowledge using letters and numbers (Classification). While librarians' experiences in the use of both cataloging systems have been generally positive in the beginning, it is not without problems, especially now that the digital age has arrived ...

Part 1: Theoretical Probability

A. Use a tree diagram to list all possible outcomes of the experiment of rolling two dice. B. Use your tree diagram to finish filling in this chart. C. Are the sums (2 through 12) listed equally likely? Explain your answer. We may observe that the probabilities for the sums 2-12 are not equally likely, as each sum has different number of favorable outcomes. Sum 2 and 12 have the least probability (1/36), as there is only one way you can get 2 (1,1) and 12 (6,6). On the contrary, the result 7 is ...

Part 1: Theoretical Probability

A. Use a tree diagram to list all possible outcomes of the experiment of rolling two dice. B. Use your tree diagram to finish filling in this chart. C. Are the sums (2 through 12) listed equally likely? Explain your answer. We may observe that the probabilities for the sums 2-12 are not equally likely, as each sum has different number of favorable outcomes. Sum 2 and 12 have the least probability (1/36), as there is only one way you can get 2 (1,1) and 12 (6,6). On the contrary, the result 7 is ...

#222060 : Finite Element Analysis of a Clamp Frame

PART 1 INITIAL STRESS ANALYSIS

Analysis Model is prepared with the dimension as shown in Fig.1-1 Fig.1-1 Initial Specification

Material propertie as shown in Table1-1 is adopted in the model.

All the degree of freedom is fixed at the lower platform, as shown in Fig.1-2; Fig.1-2 Boundary Condition at the Lower Platform

Upward axial force (15000N) is applied on the inner surface of the cylindrical hole, as shown in Fig.1-3;

Fig.1-3 Axial Force at the Cylindrical Hole

Mesh is created with a default size, as shown in Fig.1-4;

Fig.1-4 Mesh with a Default Size : 12481 Nodes / 7372 Elements

After the calculation, the following results are obtained;

1. A Stress Plot of the von Mises Stress for the entire frame, clearly showing the area of highest stress. Fig.1-5 Von Mises Stress : Max. Stress = 204.382(Mpa) 2. A plot of ...

Introduction

The Hindu-Arabic numerals are said to have come from the Hindus, Egyptians, Persians and Arabs. There is a presumption that the interrelation between traders served in carrying the symbols from one region to another and hence the accumulation from the different origins. Nonetheless, India is said to be the country that first used the largest number of numerals. The numeral system was established in ancient India. Prior to the emergence of Arab Empire the numeral system of the Hindu and Arabs was already going towards the West. The Arabs adopted the nine numerals in the 9th century. Initially, it was ...

The following report will be based on the ancient Babylonian Numeration System. It has a great deal of mathematics involved and continually relates to modern everyday life experiences. The history behind this number system goes way back to the ancient times when it first originated in 1800 BC. (Babylonian Numbers, n.d)

Babylonian mathematics developed from Mesopotamia, the country between the Euphrates and Tigris, known as Iraq today. In the late nineteenth century archaeologists began digging in the ancient city of Mesopotamia, and thousands of clay tablets were discovered in evidence of ancient civilizations. There was some recognition of the relation ...

INTRODUCTION

The metric system has been developed by the French chemist Lavoisier as a unit of measurement (“The Metric System Units,” n.d.), which can be used for measuring lengths, weights and volumes. The relation of multiples and sub-multiples of metric units are denoted by powers of ten and the unit names are prefixed, with the prefix hector denoting 100; kilo denoting 1000; and mega denoting 1 million. In addition, the prefix deci denotes a tenth of a value; centi denotes a hundredth of a value; and milli denotes a thousandth of a value.

In this laboratory activity, the use of the metric units will be investigated. This ...

Introduction

The constant ‘e’ is a numerical constant. This irrational number is widely used in science and mathematics and is approximately equivalent to 2.71828. Generally, a constant is a special number that plays a significant role in various contexts including calculus, geometry and number theory. The constant ‘e’ as a special constant becomes relevant in the event that a circle’s circumference is divided using its diameter.

Applications of ‘e’

There are quite a number of formulas that apply this constant (O’Connor and Robertson, 2012, pp. 1). The non-linear equation of decrease and increase (growth and decay situations) is a one of the examples of application. Another example is the ...

The life of Pi is a story about a young boy named Piscine Molitor Patel who experiences immeasurable hardships while at sea. Patel is a zoo keeper’s son born in Pondicherry, India. When growing up Piscine was always teased about his name that he decided to shorten it so that he was known as Pi, just like π, the Mathematical symbol. At age sixteen, Pi survives on a life boat while at sea for 227 days after a shipwreck that makes him lose all his family members. The story therefore centers on Pi’s attempts at survival and explores the dehumanizing situation the young ...

Internet Technology Learning Management System

Open source desktop applications for project management work can be more imaginative then the commercial software management systems that always seem to rework the same applications with minor differences. Open Workbench is nice because it does not offer the same time-based goal orientation but instead offers task-based goals. A goal is reached when a task is finished instead of having to race against a clock for each task. The download is free from Source Forge.net. The installment took less than 15 seconds. The application has a double split screen vertically and a triple split screen horizontally at the Phase One Gantt level ...

Introduction:

Nursing is a profession that deals with the taking care of people who are sick or injured. With the vital cases that nurses do seal with at times, like ordering for drugs, subscribing for a patient and administering of the same, they do undergo training to be able to handle such tasks. During their training, they familiarize themselves or get skills that might enable them handle the different cases that might arise when they are practicing their profession in the field. In the process of their medical practice, they do undergo many challenges that affect both their profession and the people ...