1 Suppose the probability of someone wearing a pair of glass

1) Suppose the probability of someone wearing a pair of glasses among 5th graders is 35%. If there are 54 kids in a class, how many of them are expected to have glasses?

2) Suppose the probability of someone wearing a pair of glasses among 5th graders is 37.9%. If there are 53 kids in a class, what will be the standard deviation of this distribution?

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