10 percent increase because she had an 80 percent and if it is 90 percent it's a ten percent increase
Answer:$1,060
Step-by-step explanation: if it charges $40 every mont after the the first 100 dollar charge that means in 1 year you with have payed 480 becuase 40*12= 480 then adding on another year with make it 40*24=960 also including the first $100 u pay you with have payed $1,060
Answer:The last answer choice
Step-by-step explanation:
I think
Solution :
a).
Now, if X = Y, then :
Then, E[X|Y] = x = y
So,
= 0
Therefore, this statement is TRUE.
b). If X = Y , then Var (X) = Var (Y)
And as Var (X|Y) = 0, so Var (X|Y) ≠ Var (X), except when all the elements of Y are same.
So this statement is FALSE.
c). As defined earlier,
So, this statement is also TRUE.
d). The statement is TRUE because .
e). FALSE
Because,