Suppose that all the values in a data set are converted to z-scores. which of the statements below is true? a: the mean of the z-scores will be zero, and the standard deviation of the z-scores will be the same as the standard deviation of the original data values. b: the mean and standard deviation of the z-scores will be the same as the mean and standard deviation of the original data values. c: the mean of the z-scores will be 0, and the standard deviation of the z-scores will be 1.d: the mean and the standard deviation of the z-scores will both be zero.

The blue whale is the largest animal living on the earth. the average blue whale measures 100 feet long (30 meters) and weighs 300,000 pounds (136,000 kilograms). a whale’s head is 1⁄3 of the length of its body. a new baby whale is 1⁄4 the length of a grown whale. the average man is 1⁄17 the length of a blue whale, and 1⁄1,818 its weight. a human baby measures 1⁄4 of the length of an adult. calculate the following information: how long is a whale’s head? how long is a new baby whale? how tall is the average man? how much does the average man weigh? how tall is the average human baby?

What is the standard deviation of the following data set rounded to the nearest tenth? 3, 17, 18, 15, 12, 21, 9

What are the solutions to the following equation? |m| = 8.5 the value of m is equal to 8.5 and because each distance from zero is 8.5.