Make this into a 2 way table please 80 students like bike riding
20 students like bike riding but do not like skating
90 students like skating
40 students do not like bike riding

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%