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Please help?! 5 Find E x when the prob. density fun is f ( * ) = 12x, 25x52 O . otherwise ( a) (

Please help?!

5 Find E x when the prob. density fun is f ( * ) = 12x, 25x52 O . otherwise ( a) ( b) If Y= 16 x+ 20 (using the above) Find Ely] ( c ) Find E [x 2 ] (using the above) ( d ) Find Van ( x] (using the above)

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