Statistics and methodology

1:

If the proportion of defective in a bulk is 4%, find the probability of not more than 2 defectives in a sample of 10, it is known that e-4 = 6703

A.

99.2%

B.

3.06%

C.

9.36%

D.

4.02%

 

Answer : A

Explanation :

Probability of not more than 2 defectives

= 0.6703 + 0.26812 + 0.053624

= 0.992044 x 100

= 99.2%

Hence the answer is (a).

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Option: A

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