Refer to Exercise 7.38 and, instead of , consider the statistic Sample range R = Largest observation

Question:

Refer to Exercise 7.38 and, instead of , consider the statistic
Sample range R = Largest observation - Smallest observation
For instance, if the sample observations are (2, 6), the range is 6 - 2 = 4.
(a) Calculate the sample range for all possible samples.
(b) Determine the sampling of R. Distribution
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