For the function F(x) = 1/x-2, which of these could be a value of F(x) when xis close to 2?

A 0.01
B 2
C 10,000
D -0.01

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%