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Find the z-score of the value 91 in a dataset with mean 132 and standard deviation 11. Interpret the Z-score in terms of number of standard deviations above or below the mean. Give your answers accurate to three decimal places. 2-score i This value of 91 is i standard deviation(s) V the mean.

A dataset with mean 69 and standard deviation 7 has a symmetric bell-shaped distribution. Find an interval that is likely to contain about 95% of the data values. Enter exact answers. The interval is to

Use the 95 % rule and the fact that the summary statistics come from a distribution that is symmetric and bell-shaped to find an interval that is expected to contain about 95% of the data values. A bell-shaped distribution with mean 230 and standard deviation 22. The interval is in ! to i