Answer:
r = 0.99
Very strong positive correlation between x and y
Step-by-step explanation:
Given is a data containing years and the corresponding heights
We have to find the correlation coefficient.
x y
1 2.1
2 3.2
3 6.8
4 7.3
5 11.2
6 12.6
7 13.4
8 15.9
r 0.988670694
Formula for r is
![\frac{n\Sigma xy -\sigma x \Sigma y}{\sqrt{(n\Sigma x^2 -(\Sigma x)^2)*}(n\Sigma y^2 -(\Sigma y)^2 }](https://tex.z-dn.net/?f=%5Cfrac%7Bn%5CSigma%20xy%20-%5Csigma%20x%20%5CSigma%20y%7D%7B%5Csqrt%7B%28n%5CSigma%20x%5E2%20-%28%5CSigma%20x%29%5E2%29%2A%7D%28n%5CSigma%20y%5E2%20-%28%5CSigma%20y%29%5E2%20%7D)
Thus we find that correlation coefficient is 0.988670694
Rounding off to two decimals r = 0.99
Very strong positive correlation between x and y
Answer:
hello! :) have a good day!
8x³ + 5x² − 8x + 10
I’m gonna say -15 is the answer Fr prolly or 1
If you divide 24 by 0.25 (1/4), you would get your answer. Since the formula is LxW, your answer will be 96. 24 divided by 1/4 is 96/97.
Answer: Lila is incorrect about transferring money through checks.
Step-by-step explanation: If Lila transfers money through checks then she is adding money to her bank account funds and increasing her interests if she leaves the money there for a while.