1 Draw the image of AABC under a dilation whose center is P and scale factor is
12.4
B
- 5.3
5 5.8
35.0
9.5
6.0
P

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%