Find (a) the range and (b) the standard deviation of the data set 141,116,117,135,126,121. Round to the nearest hundredth if necessary.

Which of the following is correct interpretation of the expression -4+13

Use the distributive law to multiply. 3(4x + 5y + 6)

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%