The box plot below shows the number of years that 16 schools have participated in an interschool swimming meet: at least how many schools have participated for 1 year or less? a.3 b.4 c.8 d.10

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%

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?

What does the sign of the slope tell you about a line?