Question
The following information is obtained to study the relationship between average rainfall $($in $cm.)$ and the yield of maize $($in quintal per hectare$)$ in different talukaa of Gujarat.
Particulars Rainfall (cm) x Yield of maize (quintal per hectare) y
mean $82$ $180$
variance $64$ $225$
Correlation coefficient $0.82$
Estimate the yield of maize when the rainfall is $60 \ cm$.

Answer

$\hat{y}=146.12 ($quintal per hectare$)$

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