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- 1. Multiple ChoiceYou are analyzing a scatter plot that has a negative correlation. What is true of the of the x and y values?As x increases, y decreasesAs x increases, y increasesAs x decreases, y decreases
- 2. Multiple ChoiceWhat type of correlation (association)?
The outside temperature and the amount of layers you wear.Positive correlationNegative correlationNo correlationAll of the above - 3. Multiple ChoiceThe number of siblings you have and your weight.Positive correlationNegative correlationNo correlationAll of the above
- 4. Multiple ChoiceThe height of students and their scores on a test.positive correlationnegative correlationno correlation
- 5. Multiple ChoiceThe number of notebooks bought and the total cost.positive associationnegative associationno association
- 6. Multiple Choice
As the age of the car increases, its value decreases. Which scatterplot represents this relationship?ABCD - 7. Multiple ChoiceAbout how many male math teachers were there in 2006?15303545
- 8. Multiple ChoiceWhich of the following could be a possible line of best fit for the data?y = -5/2x + 20y = -x + 19y = x + 20y = 2/3x + 15
- 9. Multiple ChoiceWhat is a line of best fit used for?To make predictionsTo make the graph look prettyTo connect the pointsTo make it look like you know what you are doing
- 10. Multiple ChoiceWhat is a scatter plot?A graph that shows the relationship of two data sets.A graph drawn using rectangular bars to show how large each value is.A graph that shows information that is connected in some way.A graph that shows data changing over time.
- 11. Multiple ChoiceThe graph above shows a line of best fit for data collected on the distance bicyclists have remaining in relation to the amount of time they have been riding. What is the equation of the line of best fit?y = -25x + 170y = 25x + 170y = -(5/8) x + 170y = (5/8) x + 170
- 12. Multiple ChoiceLooking at the graph, what is the correlation between the x and y variables?y increases as x increasesy is constanty decreases as x descreasesy decreases as x increases
- 13. Multiple ChoiceThe graph shows a line of best fit for data collected on the amount of income earned by lawn companies in relation to the number of yards mowed. What is the equation of the line of best fit?y = (3/2) xy = 30xy = 30x + 300y = (3/2)x + 300
- 14. Multiple ChoiceMrs. Moises, the school counselor, keeps a candy jar in her office for students. During one week, she kept count of how many students came to visit her and the number of candies in the jar, as show in the scatter plot. Based on the trend line, what is the best prediction for the number of candies in the jar when 30 students visit her?90180135150
- 15. Multiple ChoiceLooking at the graph showing a line of best fit, what is the correlation shown?Length of life is constantLength of life increases as amount of sunlight increasesLength of life increases as amount of sunlight decreasesLength of life decreases as amount of sunlight increases
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