3
X- 1) +
(;-
X-2)

PLEASEE HELP SO I CAN GO GET SOME BASKETBALL PRACTICE IN

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%

Divide. write in the simplest form. 4 1/6 divided by 10

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?