Answer:
Step-by-step explanation:
Given that for a biology project, you measure the weight in grams and the tail length in millimeters of a group of mice.
The correlation is r = 0.9
If you had measured tail length in centimeters instead of millimeters, what would be the correlation?
For this we must understand the meaning of correlation and formula
Correlation is a measure of linear association between the two variables and always lie between -1 and 1
This is got by dividing covariance of (x,y) by product of std deviation of x and y
So because we changed the units of length correlation coefficient would not change.
It would remain the same as 0.90
<span>A) y=x−7
B) </span><span><span>5</span>x+2y=7
A) x = y + 7
Substituting this into B)
</span>
<span>y + 7 +2y = 7
</span>
3y = 0
y = 0
x = 7
Answer is C (7,0)
Answer:
35
Step-by-step explanation:
96 (for company A)=75+.60x (x is for the number of miles)
96=75+.60 x
I forgot how I got 35, but I plugged it back into the equation and it worked.
Answer:
120
Step-by-step explanation:
10% of 1.2 = .12
.12 = 120
