Recruits for a police academy were required to undergo a test that measures their exercise capacity. The exercise capacity (in minutes) was obtained for each of 20 recruits:

a. Draw a dotplot of the data.
b. Find the mean.
c. Find the range.
d. Find the variance.
e. Find the standard deviation.
f. Using the dotplot from part a, draw a line representing the range.Then draw a line starting at the mean with a length that represents the value of the standard deviation.
g. Describe how the distribution of data, the range, and the standard deviation are related.

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