If two random
variables are independent, their joint probability is the product of
the two marginal probabilities.
The mean of the
sum of independent random variables is the sum of the means of the
independent random variables.
The variance of
the sum of independent random variables is the sum of the variances
of the independent random variables.
Combining Independent Random Variables
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.
The book includes five full length practice exams in addition to a full 15 chapters of review that is divided into the four major themes on the statistics test: Exploratory Analysis, Planning a Study, Probability, and Statistical Interference.
The book includes 2 full length practice tests with detailed answers and explanations, a full review of the subject material presented, and step-by-step techniques for cracking each type of statistical analysis question.