Aset of cards is numbered 1-12 if i were to pick a random card what is the probability i pick 1,3 or 11

Which point lies on a circle with a radius of 5 units and center at p(6, 1)?

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%

Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below.