If you know the ratio of inches to centimeters is 1 to 2.54, how can you find the number of centimeters equivalent to
9 inches? What is the relationship between centimeters
and inches?
1
I

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%