What is the best indication that a least-squares regression line is an appropriate model for an association? (a) A large value of r2.
(b) A small value of r?
(C) A slope that is close to 0.
(d) A residual plot that shows an obvious pattern.
(e) A residual plot that does not show an obvious pattern.

your answer is the frist one

hop i

answer: -0.5 would be the most likley outcome

step-by-step explanation:

answer: #1 ads up by 8 and i don't know #2

step-by-step explanation:

given expression is .

now we need to simplify the given expression .

we know that square root is equivalent to the power 1/2. so that means we can take half of the exponents to get the square root of given expression.

expanding that will give a very very large number so let's keep answer in exponent form.