SOLUTION:
From given data,
= 4
= 5
= 625
= 50
The coefficient of determination:
R2 = SSR/SST
Where,
SSR = /
= 502 / 5
= 500
SST = = 625
By substituting all values in R2 then we get ,
R2 = SSR/SST
R2 = 500 /625
R2 = 0.8
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