For a gamma distribution with a scale parameter of 400 and a

For a gamma distribution with a scale parameter of 400, and a shape parameter of 3.8, determine Pr(x < 200).

Solution

Using technology, [you can use the GAMMA.DIST function in Excel]

Pr(x<200) = 0.002719089 [ANSWER]

[You can input on any cell

=GAMMA.DIST(x, shape parameter, scale parameter, 1)

to get the left tailed area of you x.]