In a fisheries researcher's experiment, the correlation between the number of eggs in the nest and the number of viable (surviving) eggs for a sample of nests is r = 0.67.
The equation of the regression line for number of viable eggs y versus number of eggs in the nest x is y = 0.72x + 17.07. For a nest with 140 eggs, what is the predicted number of viable eggs?
A) 114 eggs
B) 116 eggs
C) 118 eggs
D) 120 eggs
E) None of these answers are correct

Question

Quizplus · Accepted Answer

The predicted number of viable eggs is calculated by substituting x = 140 into the regression equation: y = 0.72(140) + 17.07 = 118.47, which rounds to 118 eggs.

In a Fisheries Researcher's Experiment, the Correlation Between the Number