Determine the standard deviation of demand

Reference no: EM13178320

The daily demand for a certain product is a random variable with the probability density function f(x)=(6/125)*x*(5-x) for x from 0 to 5
Determine the expected value of demand: 2.5
Determine the standard deviation of demand: sqrt(1.25) <not sure>
Determine the probability that is within one standard deviation of the mean: ?

Reference no: EM13178320

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