A quick quiz consists of 2 multiple choice problems, each of which has 6 answers, only one of which is correct. If you make random guesses on all 2 problems, (a) what is the probability that all 2 of your answers are incorrect?

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%

Rounded to the nearest tenth, what is the value of x

If f(x) = 3x-2 and g(x) =2x+1 find (f-g)(x)