Answer:
$40.60
Step-by-step explanation:
Answer:
94.5
Step-by-step explanation:
450 / 100 = 4.5
4.5 * 21 = 94.5
HOPE THIS HELPS
PLZ MARK BRAINLIEST
Answer: option a.
Step-by-step explanation:
By definition, we know that:

Substitute
into the first equation, solve for the cosine and simplify. Then, you obtain:

As
then
:

Now we can find
:

The maximum positive value that the correlation coefficient can have is 1.
Thus, 0.88 is pretty close, indicating a positive slope for the regression line and points lying close to that line.