The probability of selecting a NON-defective part from a box containing 20 parts, 3 of which...

Question

Question

The probability of selecting a NON-defective part from a box containing 20 parts, 3 of which are defective is:

a) 3/20
b) 1/3
c) 17/20
d) 1/20

Answer 1

Answer #1

No. of defective parts in a box containing 20 parts = 3

Thus, no of non defective parts = 20 - 3 = 17

The probability of selecting a NON - defective part from a box containing 20 parts, 3 of which are defective is 17/20

Answer 2

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