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Line of Best Fit Lesson + Review

Line of Best Fit Lesson + Review

Assessment

Presentation

Mathematics

8th Grade

Practice Problem

Medium

CCSS
6.NS.B.3, 6.SP.B.4, 8.EE.B.5

+5

Standards-aligned

Created by

Sarah Francis

Used 10+ times

FREE Resource

8 Slides • 17 Questions

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6

Multiple Choice

Question image

Which line would be the line of best fit?

1

LineA

2

Line B

3

Line C

4

Line D

7

Multiple Choice

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A 10 inch candle is lit. The scatterplot shows the height after each hour. What relationship does the scatter plot show?

1

Positive

2

None

3

Negative

4

8

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10

Multiple Choice

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The graph shows the ages (in months) and the weights (in pounds) of 12 babies. What kind of relationship does the graph show?

1

Positive

2

None

3

Negative

4

11

Multiple Choice

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What could be a reasonable weight for a 14 month old baby according to the data?

1

16 lbs

2

22 lbs

3

30 lbs

4

50 lbs

12

Multiple Choice

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The graph shows Beth's bank account over the first year. What was her starting balance?

1

$300

2

$350

3

$400

4

$450

13

Multiple Choice

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Which is a reasonable estimation for how much money will be in her account in 15 months?

1

$1250

2

$950

3

$650

4

$450

14

Multiple Choice

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Which equation could be the line of best fit for this graph?

1

y=-1/3x + 2

2

y=3x + 2

3

y=-3x + 2

4

y=1/3x + 2

15

Multiple Choice

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Which could be the equation for the line of best fit?

1

y= -1/2x + 8

2

y= -2x + 8

3

y= 1/2x + 8

4

y= 2x + 8

16

Unit 8 Review Questions

​Probability & Box Plot

17

Multiple Choice

Which would show how to calculate the probability of flipping a coin 3 times and landing on heads each time?

1
2
3
4

18

Multiple Choice

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What is the probability of drawing a red marble, replacing the marble, then drawing a blue marble?

1
2
3
4

19

Multiple Choice

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What is the probability of drawing a red marble, not replacing the marble, then drawing a blue marble?

1
2
3
4

20

Multiple Choice

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According to the boxplot what is the upper quartile?

1

4

2

9

3

12

4

18

21

Multiple Choice

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According to the boxplot what is the median?

1

4

2

9

3

12

4

18

22

Multiple Choice

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What is the interquartile range?

1

4

2

6

3

12

4

14

23

Multiple Choice

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What percent of the data is greater than 12?

1

25%

2

50%

3

75%

24

Multiple Choice

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What percent of the data is between 4 and 12?

1

25%

2

50%

3

75%

25

Multiple Choice

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If there are 20 people in this data, how many were between 6 and 18?

1

5 people

2

10 people

3

15 people

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​pg 14

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