A and B are mutually exclusive events. P(A) = 0.20 and P(B) = 0.70. What is P(A or B)? A. 0.90
B. 0.50
C. 0.14
D. 0.28​

Select the correct answer. what is the surface area of the victory podium shown here? include all surfaces of the podium, including the bottom. a. 61.5 square feet b. 61.75 square feet c. 65.25 square feet d. 69 square feet

Asquare parking lot has 6,400 square meters what is the length in meters

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%