A committee of 3 is being formed randomly from the employees at a school: 5 administrators, 34 teachers, and 4 staff. What is the probability that all 3 members are administrators? Express your answer as a fraction in lowest terms or a decimal rounded to the nearest millionth.

Which graph corresponds to the function f(x) = x2 + 4x – 1?

40 describe the outliers from the scatter plot.

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%