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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
1 Nov 2021

Given information

Let X = one value from the given distribution.ΣX = the sum or total of n values=42 .

Because  mean (μX) = 25, standard deviation (σX) = 6, and sample size(n) = ?

Step-by-step explanation

Step 1.

As we know, the standard deviation for Sums,

 

On squaring both sides,

n= 49

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