If 60% of the students prefer waffles to pancakes. If there are 5 students in the class, how many students prefer waffles?

An equation where variables are used to represent known values—function notation true or false

Nine more than four times a number is the same as one less than twice the number. find the number?

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%