A. In general terms, how did the SAT scores of the students in the five grade categories change between 1988 and 1998?

B. How did the overall average SAT score change between 1988 and 1998?

C. Briefly explain why the results might seem surprising or paradoxical.

Which of the following of the following sets of side lengths could not form a triangle?

In δabc, if the length of side b is 3 centimeters and the measures of ∠b and ∠c are 45° and 60°, respectively, what is the length of side c to two decimal places?

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%