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Every time a child visits the doctor, their height is recorded. Let y be the height...

Every time a child visits the doctor, their height is recorded. Let y be the height of the child (in centimeters) and let x be the age of the child (in months). The least squares regression line is y^=73.8+0.31x. Based on the least squares regression line, what is the prediction of the child's height at 54 months?

  • A. 57.06 cm

  • B. 127.80 cm

  • C. 54.00 cm

  • D. 90.54 cm

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Answer #1

Here x=54 so putting value of x in equation we get

Ycap=73.8+0.31×54=90.54 option d answer

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