Correlation
Authored by Anthony Clark
Mathematics
8th Grade
CCSS covered
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The scatter plot below shows the number of books read by students in Mrs. Hall’s English class and their final grades. Which statement represents the best description about the line of best fit?
The more books students read, the lower their English grade.
The more books students read, the higher their English grade.
The fewer books students read, the higher their English grade.
No relationship exists between the number of books students read and their English grades.
Tags
CCSS.8.EE.B.5
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What kind of trend is shown from this scatterplot?
positive correlation
negative correlation
none
cannot be determind
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The equation of the trend line
is y= 1/2x +1. What does the x variable represent?
The number of laps
The amount of time in hours
The amount of time in minutes
How long it takes to go 0 laps
Tags
CCSS.HSF.LE.B.5
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is a line of best fit used for?
To make predictions
To make the graph look pretty
To connect the points
To make it look like you know what you are doing
5.
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
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What would be the correlation be between study time and test grades?
positive correlation
negative correlation
no correlation
cannot be determined
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Write the equation that best matches the graph shown.
y = 4x
y = 4x - 3
y = 4/3 x + 4
y = 4/3 x - 3
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