У What is the lowest value of the range of the function
shown on the graph?
5
4+
Od
3+
O-2
2
14
3
1 3 4 5 X
-5 4 -3 -2 -1,
-2+
-3+
-4
-5

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%