1. There are only 7 black buttons, 5 yellow buttons and 6 green buttons in a bag. One buttons is taken at random from the bag.

At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?

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%

Which of the choices shown could be used to prove that aacp=abcp ?