Suppose a shipment of 400 components contains 68 defective and 332 non-defective computer components. From the shipment you take a random sample of 25. When sampling with replacement (so that the p = probability of success does not change), note that a success in this case is selecting a defective part. The mean of this situation is?

mean (μ) = 4.25

Step-by-step explanation:

Let p = probability of a defective computer components =

let q = probability of a non-defective computer components =

Given random sample n = 25

we will find mean value in binomial distribution

The mean of binomial distribution = np

here 'n' is sample size and 'p' is defective components

mean (μ) = 25 X 0.17 = 4.25

Conclusion:-

mean (μ) =  4.25

45

step-by-step explanation:

-2

7 - 9 = -2

reversed:

-2 + 9 = 7