Textbook ExpertVerified Tutor
12 Nov 2021
Given information
Given that, X ~ N(60, 9). Suppose that you form random samples of 25 from this distribution. Let X ¯ be the random variable of averages. Let ΣX be the random variable of sums. For parts c through f, sketch the graph, shade the region, label and scale the horizontal axis for X ¯ , and find the probability.
Then we have to find the distribution of .
Step-by-step explanation
Step 1.
We have and .
Then
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