Math, asked by nayaksubhasis015, 27 days ago

1: If the probability of a defective bolt is 1/8, find the variance for the distribution of defective bolts of 640
2941595302
80
60
70
50

Answers

Answered by archanasaini99

0

Step-by-step explanation:

We have,

n=500 and p=0.1

Therefore, Mean=np=500×0.1=50

And, S.D.=Variance=npq=500×0.1×0.9=6.71

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