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Test7 1

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QUESTION 1 1. The scatter plot shows how many bugs, with and without wings, were found by students on a field trip. How many bugs with wings did students Q, F, and G find? 2. 3. 44 27 34 37 4 points QUESTION 2 1. Which phrase best describes the association between variables X and Y? 2. 3. perfect negative association perfect positive association strong positive association strong negative association 4 points 1. QUESTION 3 Which phrase best describes a scatter plot in which the variables are correlated with r = –0.19? strong positive association strong negative association weak negative association weak positive association 4 points QUESTION 4 1. The scatter plot shows the trade-in value and private-party value of 10 cars. The equation for the regression line is = 1.1x + 1.37. Based on the equation, which statement is true? 2. 3. For each increase of $1000 in trade-in value, the private-party value increases by $1037. For each increase of $1000 in private-party value, the trade-in value increases by $1100. For each increase of $1000 in trade-in value, the private-party value increases by $1100. For each increase of $1000 in private-party value, the trade-in value increases by $1037. 4 points 1. QUESTION 5 A real estate agent made a scatter plot with homeowners' property taxes on the y-axis and the sizes of their homes, in square feet, on the x-axis. The variables have a strong linear correlation and the equation for the least squares regression line is = ...
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