e correlation between the height and weight of children aged 6 to 9 is found to be about r = 0.64. Suppose we use the height x of a child to predict the weight y of the child. We conclude that: a. height is generally 64% of a child's weight. b. the least-squares regression line of y on x would have a slope greater than zero. c. about 64% of the time, age will accurately predict
e correlation between the height and weight of children aged 6 to 9 is found to be about r = 0.64. Suppose we use the height x of a child to predict the weight y of the child. We conclude that: a. height is generally 64% of a child's weight. b. the least-squares regression line of y on x would have a slope greater than zero. c. about 64% of the time, age will accurately predict
Chapter4: Linear Functions
Section: Chapter Questions
Problem 41RE: For the following exercises, consider the data in Table 5, which shows the percent of unemployed in...
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The correlation between the height and weight of children aged 6 to 9 is found to be about r = 0.64. Suppose we use the height x of a child to predict the weight y of the child. We conclude that:
| a. |
height is generally 64% of a child's weight.
|
|
| b. |
the least-squares regression line of y on x would have a slope greater than zero.
|
|
| c. |
about 64% of the time, age will accurately predict weight.
|
|
| d. |
the fraction of variation in weights explained by the least-squares regression line of weight on height is 0.64.
|
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