Scatter Plots and Predictions
Authored by Anthony Clark
Mathematics
8th Grade
Statistics covered
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find the equation of the line of best fit for the given data
y=163.41x + 4.19
y=-163.41x + 4.19
y=-4.19x + 163.41
y= 4.19x - 163.41
There is no linear correlation of the data set
Tags
Statistics
Line of Best Fit
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
As the age of the car increases, its value decreases. Which scatterplot represents this relationship?
A
B
C
D
Tags
Statistics
Scatter Plots
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A restaurant sells pizza for the prices in the data table. Calculate the linear regression equation of the data.
y = 3/2x + 12
y = 12x + 1.5
y = 2/3x - 8
y = -8x + 0.67
y = 2/3x + 12
Tags
Statistics
Line of Best Fit
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What type of correlation does this scatter plot show?
positive linear association
negative linear association
no association
exponential association
quadratic association
Tags
Statistics
Scatter Plots
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In this image, how would you describe the point that does not fit the pattern of the other dots?
The point is a linear model.
The point is an outlier.
The point is the range.
The point is the median.
The point is the vertex.
Tags
Statistics
Scatter Plots
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Based on the graph, if Joe earned $400, how many hours did he work?
25 hours
35 hours
45 hours
15 hours
30 hours
Tags
Statistics
Scatter Plots
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Estimate the correlation coefficient
r= -0.9
r= 0.9
r=-0.5
r=0.5
r= 0.1
Tags
Statistics
Scatter Plots
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