What''s the probability that the majority is right-handed

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Reference no: EM131382227

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?

Reference no: EM131382227

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