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
Answer:
B
Step-by-step explanation:
2x + 4y = 6x - y
4y + y = 6x - 2x
5y = 4x
(4,5) when x=4, y=5
5(5) = 4(4)
25 = 16
is a false statement, so not (4,5)
(5,4) when x=5, y=4
5(4) = 4(5)
20 = 20
is a true statement, so yes
Answer:
C
Step-by-step explanation:
Answer: 121
Answer:
since her score was -12 from being perfect
if she had scored 12 more points her score would have been perfect .
that is difference between her score and the perfect score o each quiz was <u>12</u>
Answer:
256
Step-by-step explanation:
4*4*4*4=256
Hope this helps!!
