Select the statement that best describes the line.
Choosing a Line of Best Fit

Quiz
•
Mathematics
•
8th Grade
•
Hard
Anthony Clark
FREE Resource
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The line is the line of best fit.
The line is NOT a line of best fit because it does not pass through two points.
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.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The red line represents the line of best fit for the scatter plot. How many ice cream sales are expected if the temperature is 90°?
55
0
103
100
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What does the value, r= -0.89, tell us about the linear relationship of two quantitative variables?
Strong positive
Weak positive
Strong negative
Weak negative
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Determine the predicted income if 22 hours were worked on an assembly job.
$207.30
$449.60
$691.90
$543.30
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which graph has a correlation coefficient (r) of about -.6 ?
a
b
c
d
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which line is the best line of best fit?
a
b
c
i don't see any lines
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The table shown is comparing a person's foot length to their height in cm. Calculate a line of best fit.
f(x) = 25.05x + 5.57
f(x) = 5.57x + 25.05
f(x) = -5.57x + 25.05
f(x) = 5.57x - 25.05
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