A supervisor at an electric bulb factory examines bulbs produced in the factory for defects. She usually finds that there are 14 defective bulbs in a week (7 days). a. What is the probability that there are exactly 3 defective bulbs in one day? b. What is the probability that there are less than 5 defects in a day? c. Suppose the supervisor joins work, find the probability that time till the first defect is discovered exceeds 2.712 days.
A supervisor at an electric bulb factory examines bulbs produced in the factory for defects. She usually finds that there are 14 defective bulbs in a week (7 days). a. What is the probability that there are exactly 3 defective bulbs in one day? b. What is the probability that there are less than 5 defects in a day? c. Suppose the supervisor joins work, find the probability that time till the first defect is discovered exceeds 2.712 days.
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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A supervisor at an electric bulb factory examines bulbs produced in the factory for defects. She usually finds that there are 14 defective bulbs in a week (7 days).
a. What is the probability that there are exactly 3 defective bulbs in one day?
b. What is the probability that there are less than 5 defects in a day?
c. Suppose the supervisor joins work, find the probability that time till the first defect is discovered exceeds 2.712 days.
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