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In a Group of 200 Items, If the Probability of Getting a Defective Item is 0.2, Write the Mean of the Distribution. - Mathematics

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Short Note

In a group of 200 items, if the probability of getting a defective item is 0.2, write the mean of the distribution.

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Solution

It is given that the binomial distribution's p =0.2 and number of items (n) = 200

Hence,\[\text{ mean, i . e . } np = 200 (0 . 2) = 40\]

 

Concept: Bernoulli Trials and Binomial Distribution
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APPEARS IN

RD Sharma Class 12 Maths
Chapter 33 Binomial Distribution
Very Short Answers | Q 3 | Page 27

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