Question: A probability density is defined to be f ( x ) = Cx on the interval 0 < x < 9 (and 0 otherwise). Find

A probability density is defined to bef(x) =Cxon the interval 0 <x< 9 (and 0 otherwise).

Find the average (expected value). (First compute the normalizing constantC, then compute the average.) Enter the average in decimal form, rounded to four places after the decimal.

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