Given the probability density function f ( x ) = 1/2 over the interval [ 2 , 4 ] , find the expected value, the mean, the variance and the standard deviation.

good luck!

cutie~

in the attachment.   i didn't see your choices.   the word which means there is choices.

step-by-step explanation:

(x,y)

x tells you how much left or right you go from the origin

y tells you how much down or up you go from the origin

so for example (-3,2), you go left 3 and up twice. i denoted which of the ordered pairs is which in my graph.

answer is c

step-by-step explanation:

81/12=324/x

x=48

20

step-by-step explanation:

assuming you meant there are 24 pounds of apples in each case, if this is not what you meant, correct me so i can you further