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valkas [14]
3 years ago
12

The number of lightning strikes in a year at the top of a particular mountain has a poisson distribution with a mean of 3.8. fin

d the probability that in a randomly selected year, the number of lightning strikes is 0.
Mathematics
1 answer:
atroni [7]3 years ago
5 0

Let X be the number of lightning strikes in a year at the top of particular mountain.

X follows Poisson distribution with mean μ = 3.8

We have to find here the probability that in randomly selected year the number of lightning strikes is 0

The Poisson probability is given by,

P(X=k) = \frac{e^{-mean} mean^{x}}{x!}

Here we have X=0, mean =3.8

Hence probability that X=0 is given by

P(X=0) = \frac{e^{-3.8} 3.8^{0}}{0!}

P(X=0) = \frac{0.02237 * 1}{1}

P(X=0) = 0.0224

The probability that in a randomly selected year, the number of lightning strikes is 0 is 0.0224

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