1. In a group of 100 sports car buyers, 40 bought alarm system, 30 purchased bucket seats and 20 purchased an alarm system and bucket seats. If a car buyer chosen at random bought an alarm system, what is the probability that they also bought bucket seats. [Ans. 0.50] D16
1. In a group of 100 sports car buyers, 40 bought alarm system, 30 purchased bucket seats and 20 purchased an alarm system and bucket seats. If a car buyer chosen at random bought an alarm system, what is the probability that they also bought bucket seats. [Ans. 0.50] D16
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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![व्यावसायिक सांख्यिकी
234
EXERCISE 8.
1. In a group of 100 sports car buyers, 40 bought alarm system, 30 purchased bucket seats and
20 purchased an alarm system and bucket seats. If a car buyer chosen at random bought an
alarm system, what is the probability that they also bought bucket seats.
2. A box of 100 gaskets contains 10 gasket with type A defect, 5 gaskets with type B defect and
2 gaskets with both types of defect. What is the probability that a gasket to be drawn has:
type B defect under the condition that it has type A defect.
3. Given the following table:
[Ans. 0.50]
[Ans. 0.20
Have Pets
Do not have Pets
Total
Male
0.41
0.08
0.49
Female
0.45
0.06
0.51
Total
0.86
0 14](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1e69ad10-80db-4561-a2ef-e4876fa70f56%2Fad95b70f-1be5-43bc-a519-9c244daba933%2Fybyl18m_processed.jpeg&w=3840&q=75)
Transcribed Image Text:व्यावसायिक सांख्यिकी
234
EXERCISE 8.
1. In a group of 100 sports car buyers, 40 bought alarm system, 30 purchased bucket seats and
20 purchased an alarm system and bucket seats. If a car buyer chosen at random bought an
alarm system, what is the probability that they also bought bucket seats.
2. A box of 100 gaskets contains 10 gasket with type A defect, 5 gaskets with type B defect and
2 gaskets with both types of defect. What is the probability that a gasket to be drawn has:
type B defect under the condition that it has type A defect.
3. Given the following table:
[Ans. 0.50]
[Ans. 0.20
Have Pets
Do not have Pets
Total
Male
0.41
0.08
0.49
Female
0.45
0.06
0.51
Total
0.86
0 14
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