1. Which of these random variables have a

hypergeometric distribution? Explain why.

a) the number of clubs dealt from a deck

b) the number of attempts before rolling a

six with a die

c) the number of 3s produced by a random-

number generator

d) the number of defective screws in a

random sample of 20 taken from a

production line that has a 2% defect rate

e) the number of male names on a page

selected at random from a telephone book

f) the number of left-handed people in a

group selected from the general

population

g) the number of left-handed people

selected from a group comprised equally

of left-handed and right-handed people