Still more lefties. Suppose we choose 12 people instead of the 5 chosen in Exercise 19.
a) Find the mean and standard deviation of the number of right-handers in the group.
b) What's the probability that they're not all right-handed?
c) What's the probability that there are no more than 10 righties?
d) What's the probability that there are exactly 6 of each?
e) What's the probability that the majority is right-handed?