(a) Use the rules of expected value to show that
Cov(aX + b, cY + d) = ac Cov(X, Y).
(b)
Use part (a) along with the rules of variance and standard deviation to show that
Corr(aX + b, cY + d) = Corr(X, Y)
when a and c have the same sign.
(c)
What happens if a and c have opposite signs?

it reflected because of the glass maube

step-by-step explanation:

if the pizza is divided equally into 2 equal halves then you would get

πr^2/2

where r is the radius of the pizza.

happy to

pls mark as brainliest

aloha~! my name is zalgo and i am here to you out on this amazing day. to answer your question, yes, nonzero numbers can have a greatest common factor and that would be 1. still don't get it? let me considering every number is divisible by 1 and hence every number has 1 as a factor of theirs. so, if 2 nonzero numbers didn't share any gcf (greatest common factor), they would still have a factor in common and that would be 1.

i hope that this ! : p

"stay and stay proud! " - zalgo

(by the way, do you mind marking me as brainliest? i'd greatly appreciate it! mahalo! x3)

answer: b

step-by-step explanation: im sorry bro bro but thats not a eqation the human mind can answer and plus im a devil