A Recent Survey Found That 61% of All Adults Over

Multiple Choice

A recent survey found that 61% of all adults over 50 wear glasses for driving. In a random sample of 70 adults over 50, what is the mean and standard deviation of the number who wear glasses? round to the nearest hundredth when necessary.

A) mean: 27.3; standard deviation: 4.08
B) mean: 27.3; standard deviation: 6.53
C) mean: 42.7; standard deviation: 6.53
D) mean: 42.7; standard deviation: 4.08