Question

Let x have an exponential distribution with λ = 1. Find the probability. (Round your answer...

Let x have an exponential distribution with

λ = 1.

Find the probability. (Round your answer to four decimal places.)

P(2 < x < 9)

Math   Statistics-And-Probability   
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Homework Answers

Answer #1

Let  .

Therefore

The probability density function is ,

The number e = 2.71828182....

The curve is ,

The cumulative distribution function (CDF),

here , therefore CDF ,   

Let

  

Therefore,

  

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