R2.84: There are 2 defective products in a production lot of 10. An inspector randomly selected...
R2.84: There are 2 defective products in a production lot of 10. An inspector randomly selected 3 of them without replacement. What is the probability that all selected products are good?
A. 46/120
B. 2/10
C. 56/120
D. 3/10
Homework Answers
There are 2 defective products in a production lot of 10
8 among them are good.
Number of ways in which we can select 3 products of 8 good product with out replacement is
Total number of ways in which we can select 3 products out of 10 products
Probability all the selected thee products are good
Hence the correct answer is C
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