Question

A box contains 10 screws, 3 of which are defective. Two screws are drawn at random with replacement. The probability that none of the two screws is defective will be

Answer 1

The probability of the 2 screws is = 2/3
I hope it is helps you .

Answer 2

Answer:

49/100

Step-by-step explanation: for one draw,

P(defective) = 3/10

P(not defective) =7/10

Since we are selecting with replacement,

P(not defective) = (7/10) * (7/10) = 49/100