Question

Linear Regression Question

Answer 1

easy thing to do is put the bivariate data into excel

do a scatter plot

then right click on a data point and get line of best fit

Answer 2

Not understanding question 11.

Answer 3

I thought it would be B

Answer 4

Instead its E...

Answer 5

Also, once you answer that if we are converting r^2 into r but r^2 is negative

Do we just Square root the r^2 without the negative and then add the negative to the answer?

Will of course medal. Thanks for the help.

Answer 6

ok... 3 median regression line is painful

so you need to split the data into 3 parts

equal number of points

then

find the median of the lower 3 points
the median of the middle points
the median of the upper points

then draw a line that closely approximates the 3 points

when you get the line, you can find the slope...

no real short cut to the problem

but as a guide look at the scales.... rise is 60 run is 180...


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Answer 7

Ya the slope is 0.3

Thats fine ( 52-12/156-130)

Its just question 11 I dont understand