The answer would be cos(52°)
The median would be the same number but multiplied by whatever number you multiplied all the numbers by
Answer:
its C
Step-by-step explanation:
You need to practice ratios u bih, stop cheating on questions u benchod
Multiplication...?? Because if u add a times sign between 4x and -4 then u get 4x
Answer:
d. 0.80
Step-by-step explanation:
The given regression equation is
y=0.6x+188
Here, slope=b=0.6
xbar=420, sx=80, ybar=440 and sy=60.
As we know that when y=a+bx, the slope is
b=r(sy/sx)
From this equation we can find correlation coefficient r
b*sx=r*sy
bsx/sy=r
r=0.6*80/60=48/60=0.80.
Hence the correlation coefficient r=0.8.