some probability 101 help (will give $)

[thedarknight]

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1 I guess they mean exponential distribution with parameter 5 (gamma has 2 parameters).

Then mean =1/5

mode = 0

median = 0.693/5=0.1386


exponential

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mean is 5
median is you solve by integrating the density function of a gamma distribution. in this case e^(-y/5)/5 which will give us a probability. you integrate this from 0 to y and make it equal to .5 because it is the median. Median is (half of the probability distribution). I believe that's how it works.

Mode is 0 that is correct.