1) A company employs over 5000 workers of
whom 20% are Hispanic. If the 20 members of the
union executive committee were chosen form the
workers, without regard to ethnic background, the
number of Hispanics on the committee would
have the B ( 20, 0.2) distribution. What is the
probability that 4 or fewer members of the
committee are Hispanic?
A.0.6296
B. 0.3819
C. 0.6181
D. 0.3704
E. 0.3999
A

2) Pamela is playing an instant lottery game. What is the probability that she will not win until the 8th
try if the probability of winning is one out of 100 on
a single try?

3) A basketball player has made 66% of his foul shots during the season. Assuming the shots are independent, find the probability that in tonight's game he misses for the first time on his 6th
attempt?

4) Stan brings a bag of five different-colored
marbles to his multiple-choice statistics test which has possible answers A through E for each question. What is the probability Stan will get at

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- Summer '16
- Calculus