Nora used a ten dollar bill to buy a 1/2 gallon of ice cream for $3.25 and 11/2 pounds of meat. if her change was $0.96, what was the price per pound for the meat?

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%