8.62 Righties and lefties Refer to the previous exercise. Let X = the number of right-handed students in your sample.
(a) Find and interpret P(X 12). How does this
compare
with
your answer to
8.61(a)?
(b) Write a probability expression involving X that is equivalent to the question in
8.61(b).
(c) Find the probability that the number of right-handed students in your sample
is more than the expected value of X. Show your work.