Reference no: EM131648410

Question: Lefties redux. Consider our group of 5 people from Exercise 17.

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?

Exercise: Lefties. Assume that 13% of people are left-handed. If we select 5 people at random, find the probability of each outcome described below.

a) The first lefty is the fifth person chosen.

b) There are some lefties among the 5 people.

c) The first lefty is the second or third person.

d) There are exactly 3 lefties in the group.

e) There are at least 3 lefties in the group.

f) There are no more than 3 lefties in the group.