Compute the correlation coefficient for the data set. (2,19), (3,22), (4,26), (5,20), (6,35), (7,30), (9,40), (10,42), (11,35) E
maksim [4K]
Explanation
We are asked to compute the correlation coefficient using a graphing calculator
To do so, we have the following:
From the data plot above, we have the correlation coefficient as:
![r=0.8679](https://tex.z-dn.net/?f=r%3D0.8679)
So the answer is 0.87 (to 2 decimal places)
Answer:
(Approximation to the nearest thousandth)
Step-by-step explanation:
The area of a cylinder can be determined by the formula:
(We know that the radius, r, is 2m, and the height, h, is 5m, so we can substitute them into the formula to calculate the volume of this cylindrical tank)
(Simplify)
![V = 20\pi](https://tex.z-dn.net/?f=V%20%3D%2020%5Cpi)
(Approximation to the nearest thousandth)
Answer:
"Dominic lived in Spain for 13 months and Columbia for 7 months."
Step-by-step explanation:
let months stayed in spain be "s" and months stayed in columbia be "c"
We can write 2 equations.
Since, lived in Spain and Columbia for a total of 20 months, we can write:
s + c = 20
Also, since 120 words per month in Spain and 150 words per month in Columbia for a total of 2610 new words, we can write:
120s + 150c=2610
Solving first for s:
s = 20 - c
Putting in 2nd and solving:
120(20 - c) + 150c = 2610
2400 - 120c + 150c = 2610
30c = 210
c = 7
Now,
s = 20 - c = 20 - 7 = 13
So
"Dominic lived in Spain for 13 months and Columbia for 7 months."
Answer:
the answers are A, B, C, and F
Step-by-step explanation:
just took the quiz
The answer is : impossible