a box of 400 ipads has 50 defective and the rest are good quality. A sample...

a box of 400 ipads has 50 defective and the rest are good quality. A sample of 20 ipads is selected at random without replacement. Find the probablity that of the sample selected:

(a) there is exactly 1 defective calculator.

(b) there is at least 1 defective calculator.

(c) there is at most 1 defective calculator

Expert Solution

orchestra answered 1 year ago

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