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The correlation between the age and height of children is found to be about r = 0.7. Suppose we use the age x of a child to predict the height y of the child. We conclude
0
votes
A.
the least-squares regression line of
y
on
x
would have a slope of 0.7.
B.
the fraction of variation in heights explained by the least-squares regression line of
y
on
x
is 0.49.
C.
about 70% of the time, age will accurately predict height.
D.
height is generally 70% of a child's age
asked
6 years
ago
in
Statistics
by
anonymous
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