A sports analyst is interested in the relationship
between the number of three-point shots players
attempt in a game and the number of points scored.
To investigate the relationship, he collects a simple
random sample of 15 games and records the number
of three-point shots attempted and the total number of
points scored. He finds the equation of the least-
squares regression line to be y = 65.7 +0.729x,
where y is points scored and x is the number of three-
point shots attempted. The residual plot is shown.
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Based on the residual plot, is the linear model
appropriate?
O No, the residuals are relatively large.
O No, there is a clear pattern in the residual plot.
O Yes, there is no clear pattern in the residual plot.
O Yes, about half of the residuals are positive and
half are negative.
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