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Chapter 6: Q.104 (page 406)

Ten lines in the table contain 400digits. The count of 0s in these lines is approximately Normal with

(a) mean 40; standard deviation 36.

(b) mean 40; standard deviation19.

(c) mean 40; standard deviation 6.

(d) mean 36; standard deviation6.

(e) mean 10; standard deviation 19.

Short Answer

Expert verified

The correct answer is option (c) mean 40; standard deviation6

Step by step solution

01

Given information

Given in the question that, Ten lines in the table contain400 digits .

02

Explanation

Given;

n=400

p=0.1

Let's find the mean

localid="1650043720343" 渭x=np=400(0.1)=40

Compute the standard deviation

localid="1650043735667" 蟽x=np(1鈭�p)=400(0.1)(1鈭�0.1)=6

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