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The number of months that a light bulb is functioning is exponentially distributed with parameter λ...

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Statistics

The number of months that a light bulb is functioning isexponentially distributed with parameter λ = 1/10 .

What is the probability that a light bulb will burn for at least4 months?

Find the mean and the standard deviation.

What is the probability that a light bulb will burn for at least12 months, given that it has burned for 4 months?

Answer & Explanation Solved by verified expert
4.5 Ratings (609 Votes)
Let X denote the random variable representing the number ofmonths that a light bulb is functioning Now we are given that Xis exponentially distributed with parameter 110    See Answer
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