Question: a) A statistics class is comprised of 8 psychology majors (of which 5 are men) and 12 business majors (of which 4 are men). If one student is randomly selected from this class, find the probability of getting a psychology major or a man.

b) If two different students are randomly selected from the class described in part (a) find the probability that they are both women.

c) True or False: The median is equal to \((Q 1+Q 3) / 2 .\)

d) Find \(\mathrm{P}(3)\) in a binomial experiment for which \(\mathrm{n}=4\) and \(\mathrm{p}\) \(=1 / 4 .\)

e) Find the median I.Q. score from the sample data given in problem 6.

f) What is a type I error?

g) We want to construct a frequency table and histogram for a large collection of scores ranging from $134.5$ to $567.8$ and we want 10 classes. What should be the class width?

h) A multiple choice test question has five possible answers of which one is correct and three students make random guesses. What is the probability that all three quesses. are correct?

1. If a statistic is used to describe a sample characteristic, what is used to describe a population characteristic?

j) What do you know about a collection of scores that have a standard deviation equal to zero?

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