written narrative of the evolution of the topic. Include significant contributions from cultures and individuals. Describe important current applications of the topic that would be of particular interest for students. Number Systems Complex Numbers The earliest reference to complex numbers is from Hero of Alexandria’s work Stereometrica in the 1st century AD, where he contemplates the volume of a frustum of a pyramid. The proper study first came about in the 16th century when algebraic answers for
anticipated result of it landing on heads or tails is fifty percent. You could toss the coin five times and the coin could land on heads five times in a row, but the anticipated result remains 50 percent. The more times you toss the coin, the closer the anticipated result of landing on heads or tails will be to fifty percent, although the coin might land on the same side numerous times in a row, as the number of tosses increases, the percentage of times the coin will land on heads will congregate close to fifty
a Bernoulli process; for a single trial, i.e., n = 1, the binomial distribution is a Bernoulli distribution. The binomial distribution is the basis for the popular binomial test of statistical significance. Binomial distributions are useful to model events that arise in a binomial experiment. Examples include how many coin flip show heads, how many scratch-off lottery tickets are winners, how many of doctor’s
C H A P T E R 6 The Normal Distribution Objectives Outline After completing this chapter, you should be able to 1 2 3 Identify distributions as symmetric or skewed. 4 Find probabilities for a normally distributed variable by transforming it into a standard normal variable. Introduction 6–1 Normal Distributions Identify the properties of a normal distribution. Find the area under the standard normal distribution, given various z values. 5 Find
performing a regression analysis involving two numerical variables, we are assuming: a. All of these choices are correct. b. the variances of x and y are equal. c. y has the same variation for each x value.. d. that x and y are independent. e. the distribution of x is normal. 13 The classification of student major (accounting, economics, management, marketing, other) is an example of: a. a categorical or qualitative random variable. b. a discrete random variable. c. a continuous random variable
The mean annual income was $61,400 with a standard deviation of $2,200. Find a 95% confidence interval for the true mean annual income of the business’ customers. First we find E by doing Zc(standard deviation/square root of number of trials.) Now we add and subtract that number from the mean income to find both endpoints. The Zc of 95% is 1.96 so we would do
but no sustained IQ gains. The study targeted African-American children with a low IQ, between 70 and 85, at study entry, and disadvantaged as measured by parental employment level, parental education, and housing density (Schweinhart). Unlike the Head Start study, the design involved random assignment to either a preschool program group or a no-preschool program group with elements of accommodation to reality (for example, younger siblings were assigned to the same groups as their older siblings
3. Do psychics exist? 4. What is tolerance of error, tolerance of uncertainty, statistical significance? 5. Describe some applications from the book of the law of large numbers and the law of small numbers. Chapter 6 Bayes's Theory 1. Two-daughter problem In a family with two children, what are the chances that both children are girls? Ans: 25% In a family with two children, what are the chances, if one of the children is a
Revised Syllabus to be implemented from the Academic Year 2010 (for the new batch only) First Year First Semester A. THEORY Field Sl. No. 1 2 3 4 5 B. 6 7 8 HU101 PH101/ CH101 M101 ES101 ENGLISH LANGUAGE & TECHNICAL COMMUNICATION Theory Contact Hours/Week L 2 3 3 3 3 0 0 1 T 0 1 1 1 1 0 0 0 P 0 0 0 0 0 3 3 3 Total 2 4 4 4 4 18 3 3 4 10 0 0 0 0 2 2 2 2 4 32 Credit Points C. 9 10 Chemistry -1 (Gr-B) / Physics – 1 (Gr-A) Mathematics-1 Basic Electrical & Electronic Engineering – 1 (GrA+GrB) ME101
beam subjected to increasing bending moments and to discover the stress distribution in the beam for both the direct and shear stresses. This was done by applying a known load to the beam and recording the deflection of the loading points. These readings were then analysed to give the axial direct strains and stresses as well as the shear strains as stresses at the sites of the strain gauges. As a result, the stress distribution of the beam can be calculated. The aluminium alloy beam was tested