8.9 At a large university, the graduation rate for
student athletes was reported to be 0.61. For
two of the following, we cannot use this
chapter's methods to find the probability in
question; explain why in each case.
a. The probability that fewer than 3 in a
random sample of 6 athletes at the
university graduate.
b. The probability that fewer than 10 in a
random sample of 29 athletes at the
university graduate.
c. The probability that fewer than 10 in a
random sample of 29 football players at
the university graduate.
a