8. Light bulbs are tested for their ife-span From previous tests, has been found thal S% of the lght buts areuly reected. Arando aole of 10 buts en om tock andtat The random variable X is the number of bulbs that a rejected. What s the probabity that 2 in the sample are ed OA)0.051 O B)0.064 OC)0.075 O D)0.04
8. Light bulbs are tested for their ife-span From previous tests, has been found thal S% of the lght buts areuly reected. Arando aole of 10 buts en om tock andtat The random variable X is the number of bulbs that a rejected. What s the probabity that 2 in the sample are ed OA)0.051 O B)0.064 OC)0.075 O D)0.04
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Transcribed Image Text:8. Light bulbs are tested for their ife-span. From previous tests, it has been found that 5% of the light bubs are usually rejected. A random sample of 10 bubs s taken from stock and tett. The
random variable X is the number of bulbs that a rejected. What is the probability that 2 light bulbs in the sample are rejected?
O A) 0.051
O B) 0.004
Oc)0.075
O D)0.094
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