Method of moments estimation

Question

If Y1, Y2,.....,Yn constitute a random sample from the pdf f(y;ø)=(2/ø²)(ø-y), .......0

Find and estimator of ø by using the method of moments

Answer 1

You need to provide the support for Y (range of values that Y can take on).

But the idea is to take the mean of Y and equate it to the sample mean. Then solve for the parameter in terms of the mean. This will be the MME.