Assume that 13% of people are left-handed. We select 4 people at random. a) How many lefties do you expect? b) With what standard deviation? c) If we keep picking people until we find a lefty, how long do you expect it will take?

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Assume that 13% of people are left-handed. We select 4 people at random.

a) How many lefties do you expect?

b) With what standard deviation?

c) If we keep picking people until we find a lefty, how long do you expect it will take?
Transcribed Image Text:Assume that 13% of people are left-handed. We select 4 people at random. a) How many lefties do you expect? b) With what standard deviation? c) If we keep picking people until we find a lefty, how long do you expect it will take?
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