Assume that 15% of people are left-handed. Suppose 16 people are selected at random. Answer each...

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Question

Assume that 15% of people are left-handed. Suppose 16 people are selected at random. Answer each question about right-handers below.

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 7 of each?

e) What's the probability that the majority is right-handed?

Answer 1

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Answer 2

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