# exponential distribution

#### An electronic chess game has a useful life that is exponential with a mean of 30 months

An electronic chess game has a useful life that is exponential with a mean of 30 months. Determine each of…

#### Let $X$ be a random variable of the continuous type with pdf given by

Let $X$ be a random variable of the continuous type with pdf given by:  \begin{aligned} f(x)& = \frac{1}{7}e^{-x/7}\\ &\qquad…

#### The number of planes arriving per day at a small private airport is a random variable having a Poisson distribution with lambda = 28.8

The number of planes arriving per day at a small private airport is a random variable having a Poisson distribution…

#### A certain type of light bulb has lifetimes that follows an exponential distribution with mean 1000 hours

A certain type of light bulb has lifetimes that follows an exponential distribution with mean 1000 hours. Find the median…