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Question 260731: I really don't understand this problem at all please help!!!!!!!!!!!!!
You are given this following data
x y
2 1
3 10
4 6
5 19
5 1
7 1
7 4
Find
ss(x)
ss(y)
ss(xy)
The linear correlation coefficient, rthe slope b1
the y-intercept, b2
the equation of the line of best fit.
please help thank you in advance
Answer by drk(1908)   (Show Source):
You can put this solution on YOUR website! X . . . . X^2 . . . . . Y . . . . . Y^2 . . . . . . .XY . . . . . . (XY)^2
2. . . . . . 4 . . . . . .1 . . . . .. 1 . . . . . . . . 4 . . . . . . . .. 16
3 . . . . . . 9 . . . . .. 10 . . . . 100 . . . . . . .30 . . .. . . .. .900
4 . . . .. . .16 . . . . .6 . . . . . .36 . . . . . . .24 . . . . . . .. 576
5 . . . . . .25 . . . . . 19 . . . .. 361 . . . . . .95 . . . . . . .9025
5 . . . . . .25 . . . . .. 1 . . . . . .1 . . . . . . .6 . . . . . . .. 36
7. . . . . . 49 . . . . . .1 . . . .. . 1 . . . .. . . 7 . . . . . .. . . 49
7. . . . .. . 49 . . . .. 4 . . . . . .. 16 . . . . .. 28 . . . . . . .. 784
SS(x) = 177
SS(y) = 516
SS(XY) = 11363
(r) ~ -.093067
y-int ~ 7.48
y = -.32666x + 7.48
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