Suppose a random variableXhas expectationEX= 3 andvariance varX= 4. Compute the following quantities.(a)E[3X+ 2](b)E[X2](c)E[(2X+ 3)2](d) var(4X−2)

0.0076, if you meant 4.125 divided by 0.03125 it would be 132

step-by-step explanation:

first you have to move the decimal in 0.03125 over until its behind the 5 which is 5 places over. now the number is 3125

then you have to move the decimal in 4.125, 5 places over. now the number is 4,112,500.

now you divide like you would normally would and get 0.0076

$15.40 per mile

step-by-step explanation:

you have to round up to 4 because 6 is over 5 so you have to round the 3 up to 4

download photomath it will give you the answer and show u the steps