Analyze Scatterplot and Line of Best Fit
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Analyze Scatterplot and Line of Best Fit
Quiz
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
Standards-aligned
Anthony Clark
FREE Resource
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15 questions
Show all answers
1.
OPEN ENDED QUESTION
1 min • 1 pt
The scatterplot shows data collected from 9 people about how much money they earned based on the hours they worked. Use 2 points on the line of best fit and find the slope.
Evaluate responses using AI:
OFF
Tags
CCSS.8.EE.B.5
2.
OPEN ENDED QUESTION
1 min • 1 pt
Using your slope from the previous question, give the equation for the line of best fit in point-slope form (choose 1 of the 2 points you used to find the slope)
Evaluate responses using AI:
OFF
3.
MULTIPLE CHOICE QUESTION
1 min • 1 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 chapters would be in a book with 180 pages.
12 chapters
15 chapters
18 chapters
21 chapters
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Select the statement that best describes the line.
The line is the line of best fit.
The line is a line of best fit because it is increasing and so is the data.
The line is NOT a line of best fit because it does not go through the middle of the data set.
The line is NOT a line of best fit because it does not go through the origin.
Tags
CCSS.8.EE.B.5
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which 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
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Suppose data related to the AVERAGE Temperature outside (T) and the number of winter Coats (C) sold at a store is collected and graphed.
The LINE OF BEST FIT has the equation C = -3T + 150.
Use this equation to predict the number of coats sold when the average temperature outside is 20°.
40
75
90
115
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Suppose a LINE OF BEST FIT passes through the points (4, 8) and (6, 2). The SLOPE of this line is . . .?
-3
-6
4
2
Tags
CCSS.8.EE.B.5
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