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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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gcd99br gcd99br
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4 years ago
The correlation between a family's weekly income and the amount they spend on restaurant meals is found to be r = 0.30. Which must be true?
I.   Families tend to spend about 30% of their incomes in restaurants.
II.  In general, the higher the income, the more the family spends in restaurants.
III. The line of best fit passes through 30% of the (income, restaurant$) data points.

▸ I, II, and III

▸ III only

▸ II and III only

▸ I only

▸ II only
Textbook 
Stats: Modeling the World

Stats: Modeling the World


Edition: 4th
Authors:
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kirakira15kirakira15
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4 years ago
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