You are interested in the relationship between video games and physical activity, so you collect information from a random sample of individuals on how many hours per week they play video games (V) and how many hours per day they exercise (E). Using this data, you calculate the following sample averages:
V 2.1
V2 7.8
E 7.2
E2 60.1
VE 13.8
Calculate the OLS estimate of the slope for the following regression model:
V = beta0 + beta1 E + u

answer: 177/8

step-by-step explanation:

step-by-step explanation:

step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

hope that .

do you confirm there was a mistake in the question?

c - they will have the same distribution

step-by-step explanation:

this is the only one that could make sense. : )