Need plz answer the question thx : ) i will mark you brainlist

Me on this online 24 game! you have to add, subtract, multiply, or divide any of these to equal !

Which of the following tables represents exponential functions?

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%