Y=Mx+B what would m be

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%

Identify the number 127 as a rational or irrational. explain

Divide. –40 ÷ –5 a –8 b 200 c -200 d 8