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QUIZ

8th

grade

80%

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7

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James ONeal

5 years

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30 questions

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- 1. Multiple Choice2 minutes1 ptWhich sentence describes the relationship shown on this scatter plot?As the temperature decreases, the visitors increase.As the temperature increases, the number of visitors increases.As the visitors increase, the temperature decreases.No correlation
- 2. Multiple Choice30 seconds1 ptWhat type of association does this scatter plot represent
^{}?positive linear associationnegative linear associationno associationnonlinear association - 3. Multiple Choice30 seconds1 ptWhat type of correlation does this graph have?positivenegativenoneall of the above
- 4. Multiple Choice1 minute1 pt
What type of correlation does this scatter plot show?

positive

negative

no correlation

nonlinear association

- 5. Multiple Choice2 minutes1 ptWhich equation best represents the data?A. y= -3/5x + 2B y = 5/3x -2C y = -3/5x - 2D y= 5/3x + 2
- 6. Multiple Choice30 seconds1 ptWhich equation best represents the data?A y = 2x + 2B y= 1/2x - 2C y = -2x + 2D y = -1/2x + 2
- 7. Multiple Choice2 minutes1 ptWhich equation best represents the data?y= -2/3x - 4y= 2/3x - 4y= -3/2x - 4y= 3/2x + 4
- 8. Multiple Choice1 minute1 pt
The scatter plot shows the relationship between the number of chapters and the total number of pages for several books. Use the trend line to predict how many pages would be in a book with 19 chapters.

150 pages

170 pages

190 pages

210 pages

- 9. Multiple Choice1 minute1 pt
Based on the graph, if Joe earned $400, how many hours did he work?

25 hours

35 hours

45 hours

15 hours

- 10. Multiple Choice5 minutes5 pts
Find the equation of the line of best fit for the given data

y = 163.41x+1.49

y =- 163.41x+ 4.19

y =- 4.19x+163.41

y = 4.19x -163.41

- 11. Multiple Choice5 minutes1 ptWhat is the line of best fit?f(x)= 5x+1.82cannot be determinedf(x)= 1.82x + 5.02f(x)= 1.1x + 4.2
- 12. Multiple Choice15 minutes1 pt
A restaurant sells pizza for the prices in the data table. Calculate the trend line of the data.

y = 1.5x + 12

y = 12x + 1.5

y = 0.67x - 8

y = -8x + 0.67

- 13. Multiple Choice30 seconds5 pts
617.51 miles

621.09 miles

100 miles

0.19 miles

- 14. Multiple Choice1.5 minutes1 pt
As x increases, y decreases.

A) no correlation

B) negative correlation

C) correlation coefficient

D) positive correlation

- 15. Multiple Choice1.5 minutes1 pt
As x increases, y increases

A) correlation coefficient

B) causation

C) positive correlation

D) negative correlation

- 16. Multiple Choice1.5 minutes1 pt
What type of correlation (association)?

The outside temperature and the amount of layers you wear.

A) Positive correlation

B) Negative correlation

D) No correlation

- 17. Multiple Choice1 minute1 pt
What type of correlation (association)?

Ice cream sales and shark attacks.

A) Positive correlation

B) Negative correlation

D) No correlation

- 18. Multiple Choice30 seconds1 pt
Amount of Education and Amount of income

Positive Correlation

Negative Correlation

No Correlation

- 19. Multiple Choice30 seconds1 pt
Number of pets a person has and number of books a person has read

Positive Correlation

Negative Correlation

No Correlation

- 20. Multiple Choice30 seconds1 pt
Test scores vs. shoe sizes

Positive Correlation

Negative Correlation

No Correlation

- 21. Multiple Choice30 seconds1 pt
Number of days absent from school vs. math average

Positive Correlation

Negative Correlation

No Correlation

- 22. Multiple Choice1 minute1 ptWhat percentage of girls have blonde hair?30%32%29%40%
- 23. Multiple Choice1 minute1 ptWhat percentage of the students have brown hair?25%60%45%50%
- 24. Multiple Choice1 minute1 ptWhat percentage of males drive sports cars?35%16.25%65%25%
- 25. Multiple Choice1.5 minutes1 ptAccording to the two-way table, a person who plays an instrument is most likely to:Not play an instrumentNot play a team sportPlay a team sportAll of the above
- 26. Multiple Choice30 seconds1 pt
A battery powered car is guided through an obstacle course. The graph shows how the car traveled over a period of time.

Between which two points was the speed of the car the fastest?

P and Q

Q and R

R and S

S and T

- 27. Multiple Choice1 minute1 pt
Maria walked slowly to college along the road, she stopped to look at her watch, she realized she was going to be late for science lab, and she began running.

- 28. Multiple Choice30 seconds1 pt
In this scenario,

the bus drove fast through the streets for 20s, and then it started to return back to the depo.

the bus had a steady speed for 80s.

the bus drove fast through the streets for 20s, but then it lowered the speed around the main square.

the bus drove 400m total.

- 29. Multiple Choice30 seconds1 pt
A student walks 2.0 km in a time of 30 minutes. The student then stop for 15 minutes to eat a snack then travels 1.0 km in 15 minutes.

Which graph shows the journey described?

- 30. Multiple Choice30 seconds1 pt
Edward drove 80 miles from his home to London.

He stopped and visited his friend Nicola on the way. Here is the distance-time graph for the journey.

How far was Edward from home when he visited Nicola?

30 miles

40 miles

10 miles

45 miles

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