
which follows from the definition for expected value,

where

is the probability density function for

.
Answer
C but then again i might be wrong
0 so tthis one is soo easy since their is a lot of 0 which means nothing and their is 23 as a number so it is 23 precent can u give me points plzz
Number one is 13,464 miles long
Answer:
it's inverse is:
f(x)^-1 = (x+10)/2
Step-by-step explanation:
f(x)= 2x -10
y= 2x -10 [ let f(x) be y]
interchange value of x and y
x=2y -10
(x+10) = 2y
y=(x+10)/2
f(x)^-1 = (x+10)/2