Question: Refer to the data on bone mineral content in Exercise 2.41. (a) Calculate and s. (b) Find the proportion of the observations that are

Refer to the data on bone mineral content in Exercise 2.41.
(a) Calculate and s.
(b) Find the proportion of the observations that are in the intervals ± s, ± 2 s, and ± 3s.
(c) Compare the results of part (b) with the empirical guidelines.

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