The lifetime of traditional light bulbs measured in hours is known to be normally distributed with...
The lifetime of traditional light bulbs measured in hours is known to be normally distributed with μ=100 and σ=20. What is the probability that a randomly selected traditional light bulb will have a lifetime of 125 hours or longer?
You need to use a normal distribution table. Find the nearest answer.
| a. |
4.006% |
|
| b. |
22.663% |
|
| c. |
10.565% |
|
| d. |
77.337% |
|
| e. |
89.435% |
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The lifetime of traditional light bulbs measured in hours is
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