An apartment costs $875 per month to rent. The owner raises the price by 20%
and then gives a discount of 8% to renters who sign an 18-month lease. How
much less do renters who sign an 18-month lease pay per month to rent the
apartment?

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%