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1. |
Suppose that a shop has an equal number of LED bulbs of two different types. The probability of an LED bulb lasting more than 100 hours given that it is of Type 1 is 0.7, and given that it is of Type 2 is 0.4. The probability that an LED bulb chosen uniformly at random lasts more than 100 hours is : Note : This question was asked as Numerical Answer Type. |
A. | 0.55 |
B. | 0.7 |
C. | 0.4 |
D. | 0.35 |
Answer» B. 0.7 | |