Defence Exam  >  Defence Questions  >  A salesman has a 70% chance to sell a product... Start Learning for Free
A salesman has a 70% chance to sell a product to any customer. The behaviour of successive customers is independent. If two customers A and B enter, what is the probability that the salesman will sell the product to customer A or B?
  • a)
    0.98
  • b)
    0.91
  • c)
    0.70
  • d)
    0.49
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A salesman has a 70% chance to sell a product to any customer. The beh...
View all questions of this test
Most Upvoted Answer
A salesman has a 70% chance to sell a product to any customer. The beh...
The probability that the salesman will sell the product to customer A or B can be calculated using the principle of probability.

Given that the salesman has a 70% chance of selling the product to any customer, the probability of not selling the product to a customer is 1 - 0.7 = 0.3.

To find the probability of selling the product to customer A or B, we need to consider the different scenarios:

1. Scenario 1: The salesman sells the product to both customer A and B.
2. Scenario 2: The salesman sells the product to customer A but not to customer B.
3. Scenario 3: The salesman sells the product to customer B but not to customer A.
4. Scenario 4: The salesman does not sell the product to either customer A or B.

Calculating the probabilities for each scenario:

1. Probability of selling the product to both customer A and B:
P(A and B) = P(A) * P(B) = 0.7 * 0.7 = 0.49

2. Probability of selling the product to customer A but not to customer B:
P(A and not B) = P(A) * P(not B) = 0.7 * 0.3 = 0.21

3. Probability of selling the product to customer B but not to customer A:
P(B and not A) = P(B) * P(not A) = 0.7 * 0.3 = 0.21

4. Probability of not selling the product to either customer A or B:
P(not A and not B) = P(not A) * P(not B) = 0.3 * 0.3 = 0.09

To find the probability of selling the product to customer A or B, we need to consider scenarios 1, 2, and 3:

P(A or B) = P(A and B) + P(A and not B) + P(B and not A)
= 0.49 + 0.21 + 0.21
= 0.91

Therefore, the probability that the salesman will sell the product to customer A or B is 0.91, which corresponds to option B.
Explore Courses for Defence exam
A salesman has a 70% chance to sell a product to any customer. The behaviour of successive customers is independent. If two customers A and B enter, what is the probability that the salesman will sell the product to customer A or B?a)0.98b)0.91c)0.70d)0.49Correct answer is option 'B'. Can you explain this answer?
Question Description
A salesman has a 70% chance to sell a product to any customer. The behaviour of successive customers is independent. If two customers A and B enter, what is the probability that the salesman will sell the product to customer A or B?a)0.98b)0.91c)0.70d)0.49Correct answer is option 'B'. Can you explain this answer? for Defence 2025 is part of Defence preparation. The Question and answers have been prepared according to the Defence exam syllabus. Information about A salesman has a 70% chance to sell a product to any customer. The behaviour of successive customers is independent. If two customers A and B enter, what is the probability that the salesman will sell the product to customer A or B?a)0.98b)0.91c)0.70d)0.49Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Defence 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A salesman has a 70% chance to sell a product to any customer. The behaviour of successive customers is independent. If two customers A and B enter, what is the probability that the salesman will sell the product to customer A or B?a)0.98b)0.91c)0.70d)0.49Correct answer is option 'B'. Can you explain this answer?.
Solutions for A salesman has a 70% chance to sell a product to any customer. The behaviour of successive customers is independent. If two customers A and B enter, what is the probability that the salesman will sell the product to customer A or B?a)0.98b)0.91c)0.70d)0.49Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Defence. Download more important topics, notes, lectures and mock test series for Defence Exam by signing up for free.
Here you can find the meaning of A salesman has a 70% chance to sell a product to any customer. The behaviour of successive customers is independent. If two customers A and B enter, what is the probability that the salesman will sell the product to customer A or B?a)0.98b)0.91c)0.70d)0.49Correct answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of A salesman has a 70% chance to sell a product to any customer. The behaviour of successive customers is independent. If two customers A and B enter, what is the probability that the salesman will sell the product to customer A or B?a)0.98b)0.91c)0.70d)0.49Correct answer is option 'B'. Can you explain this answer?, a detailed solution for A salesman has a 70% chance to sell a product to any customer. The behaviour of successive customers is independent. If two customers A and B enter, what is the probability that the salesman will sell the product to customer A or B?a)0.98b)0.91c)0.70d)0.49Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of A salesman has a 70% chance to sell a product to any customer. The behaviour of successive customers is independent. If two customers A and B enter, what is the probability that the salesman will sell the product to customer A or B?a)0.98b)0.91c)0.70d)0.49Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice A salesman has a 70% chance to sell a product to any customer. The behaviour of successive customers is independent. If two customers A and B enter, what is the probability that the salesman will sell the product to customer A or B?a)0.98b)0.91c)0.70d)0.49Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice Defence tests.
Explore Courses for Defence exam
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev