If you need help with graphing desmos is the way to go
Answer:
you cant see the addends to solve
Step-by-step explanation:
in the picture
Answer:
$1430
Step-by-step explanation:
40% of 5.50 = 0.4 × 5.50 = 2.2
$2.20 per roll, 2.20 × 650 = 1430
Answer:
Step-by-step explanation:
Given that for a given paired sample data set that consists of "X" data and "Y" data, the covariance is 1000.
We know that correlation coefficient between x and y is
![\frac{cov(x,y)}{s_x*s_y}](https://tex.z-dn.net/?f=%5Cfrac%7Bcov%28x%2Cy%29%7D%7Bs_x%2As_y%7D)
Given that covariance =1000
and sample std dev of x = 75 and y = 100
Hence ![r_{xy} =\frac{1000}{25*100} \\\\=0.40](https://tex.z-dn.net/?f=r_%7Bxy%7D%20%3D%5Cfrac%7B1000%7D%7B25%2A100%7D%20%5C%5C%5C%5C%3D0.40)
Hence correlation coefficient is positive moderately strong with value = 0.40