# Answer to Question #28959 in Statistics and Probability for sonika

Question #28959

A salesman is known to sell a product in 3 out of 5 attempts. while another salesman in 2 out of 5 attempts. Find the probability that

1.no sale while happen

2. either of them will succeed in selling the product

1.no sale while happen

2. either of them will succeed in selling the product

Expert's answer

1. First salesman is known to sell a product in 3 out of 5attempts, so the probability he'll make a sale is 3/5 and hence the probability

he'll not make a sale is (1-3/5). In the same way the probability that second

salesman will not make a sale is (1-2/5). Since this two events are

independent, the probability that no sale will happen is (1-3/5)*(1-2/5)=0.24

according to product rule.

2. The probability either of them will succeed = 1-Probability (No sale will

happen) = 1 - 0.24 = 0.76

he'll not make a sale is (1-3/5). In the same way the probability that second

salesman will not make a sale is (1-2/5). Since this two events are

independent, the probability that no sale will happen is (1-3/5)*(1-2/5)=0.24

according to product rule.

2. The probability either of them will succeed = 1-Probability (No sale will

happen) = 1 - 0.24 = 0.76

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