Mean = %3D (Round to the nearest hundredth.) Standard deviation (Round to the nearest hundredth.)

Why would you use mean absolute deviation as opposed to the mean average?

The difference in the population means divided by the population standard deviation of a study is the blank?

Interpret the Z score for a student who scored an 91 on an exam that had a mean of 86 and a standard deviation of 5. One mean above the standard deviation One standard deviation above the mean One standard deviation below the mean One mean below the standard deviation

calculate the standard deviation of the data shown, 27.7, 10.8, 10.6, 21.1,22.1. round to 2 decimal places

The mean number of carats for 313 diamonds in a sample data set is 0.506 carats, with a standard deviation of 0.145 carats. Use the mean and standard deviation to form an interval that will contain at least 75% of the carat values in the data set. (Round your answer to 3 decimal places)

How does a nonzero constant number c change a standard deviation problem?

Airplane seats have widthts with a mean of 22.0 inches and a standard deviation of 1.8 inches. Find the z-score of an airplane seat 19.9 inches wide. (to 2 decimal places)

How much data is between 1 standard deviation of the mean? There are approximately     (answer) % of the data is between 1 standard deviation of the mean.

In a normal distribution, x = 5 and 2=-1.25. This tells you that x = standard deviations to the (right or left) of the mean.