Question

In: Statistics and Probability

Suppose the life time of a certain brand of light bulbs is exponentially distributed with an...

Suppose the life time of a certain brand of light bulbs is exponentially distributed with an average of 1000 hours.

a. What’s the probability that a new light bulb won’t be able to reach this amount of time?

b. What’s the probability that a new light bulb will have a life between 1000 and 2000 hours?

c. Given that a light bulb has been working for 1000 hours, what’s the probability that it can work for another 2000 hours or more?

Solutions

Expert Solution

Solution : ( b )


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