A tennis player makes a successful first serve 59% of the time.If she serves 29 times,what is the standard deviation of the number of good first serves? Assume that each serve is independent of the others.
A)11.89
B)14.5
C)7.0151
D)17.11
E)2.65

Question

Quizplus · Accepted Answer

The standard deviation for a binomial distribution is calculated using the formula: √(n * p * (1-p)), where n is the number of trials (29), and p is the probability of success (0.59). Plugging in the values gives √(29 * 0.59 * 0.41) ≈ 2.65.

A Tennis Player Makes a Successful First Serve 59% of the Time.If