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Author Question: The correlation between a family's weekly income and the amount they spend on restaurant meals is ... (Read 520 times)

Mimi

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on: Aug 30, 2019

Question 1

A consumer group collected information on HDTVs.  They created a linear model to estimate the cost of an HDTV (in $) based on the screen size (in inches).  Which is the most likely value of the slope of the line of best fit?
◦ 70
◦ 7
◦ 700
◦ 0.70
◦ 7000

Question 2

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
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Marked as best answer by Mimi on Aug 30, 2019

Bigfoot1984

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Reply #1 on: Aug 30, 2019
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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Mimi

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Reply 2 on: Aug 30, 2019
Great answer, keep it coming :)

marict

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Reply 3 on: Yesterday
Excellent

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