A batch consists of 12 defective coils and 88 good ones. Find the probability of getting two good coils when two coils are randomly selected if the first selection is replaced before the second is made. 0.7744 0.7733 0.176 0.0144

Question

A batch consists of 12 defective coils and 88 good ones. Find the probability of getting two good coils when two coils are randomly selected if the first selection is replaced before the second is made. 		 0.7744 		 0.7733 		 0.176 		 0.0144

kropot72 · Answer

The total number of coils is 12 + 88 = 100
The probability of selecting a good coil is 88/100 each time. Therefore the probability of getting 2 good coils is:
$$(\frac{88}{100})^{2}=you\ can\ calculate$$