# Question

Suppose we choose 12 people instead of the 5 chosen in Exercise 57

a) Find the mean and standard deviation of the number of right-handers in the group.

b) Whatâ€™s the probability that theyâ€™re not all right- handed?

c) Whatâ€™s the probability that there are no more than 10 righties?

d) Whatâ€™s the probability that there are exactly 6 of each?

e) Whatâ€™s the probability that the majority is right-handed?

a) Find the mean and standard deviation of the number of right-handers in the group.

b) Whatâ€™s the probability that theyâ€™re not all right- handed?

c) Whatâ€™s the probability that there are no more than 10 righties?

d) Whatâ€™s the probability that there are exactly 6 of each?

e) Whatâ€™s the probability that the majority is right-handed?

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