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The predicted height of wife using the linear regression model is 62 inches.
General form of a linear regression equation :
We could obtain the value of intercept, c thus :
63 = 0.2315(68) + c
63 = 15.742 + c
c = 63 - 15.742
c = 47.258
The regression model is thus : y = 0.2315x + 47.258
The value y, when x = 64
Substitute x = 64 into the regression equation ;
Therefore, the predicted height wife is 62 inches.
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