WorksheetsScatter plots and trend lines
Total questions: 25
Worksheet time: 2hrs 30mins
Name
Class
Date
1.
Level 1: Determine the type of correlation.
a)
Positive
b)
Negative
c)
No Correlation
2.
What type of correlation (association)?
The outside temperature and the amount of layers you wear.
The outside temperature and the amount of layers you wear.
a)
Positive correlation
b)
Negative correlation
c)
No correlation
d)
All of the above
3.
What is a line of best fit used for?
a)
To make predictions
b)
To make the graph look pretty
c)
To connect the points
4.
You are analyzing a scatter plot that has a negative correlation. What is true of the of the x and y values?
a)
As x increases, y decreases
b)
As x increases, y increases
c)
As x decreases, y decreases
5.
Based on this scatter plot, a student with 6 absences should get approximately what score on the final exam?
a)
about 58
b)
about 92
c)
about 100
d)
about 76
6.
Which of the following lines represents the line of best fit for the scatter plot?
a)
A
b)
B
c)
C
d)
D
7.
Which sentence describes the relationship shown on this scatter plot?
a)
As the temperature decreases, the visitors increase.
b)
As the temperature increases, the number of visitors increases.
c)
As the visitors increase, the temperature decreases.
d)
No correlation
8.
Which of the following would be the most accurate equation for the scatter plot?
a)
y = -2x - 7
b)
y = -x + 7
c)
y = 3x + 7
d)
y = 25x + 7
9.
the slope is -5/7, what does that mean?
a)
gain 5 hour of sleep for 7 cups of coffee
b)
lose 5 hours of sleep for 7 cups of coffee
c)
lose 7 cups of coffee for 5 hours of sleep
d)
lose 5 cups of coffee for 7 hours of sleep
10.
Describe the correlation in the graph shown.
a)
Strong Negative
b)
Strong Positive
c)
Weak Negative
d)
Weak Positive
11.
The following scatter plot shows Pam's training as she prepares to run a 6 mile race at the end of the month. Which of the following would be a reasonable approximation for the length of time it would take for her to run 6 miles?
a)
A. 50 min
b)
B. 80 min
c)
C. 45 min
d)
D. 60 min
12.
What is the correlation between length of running start and distance of jump?
a)
positive: the further you run the further you jump
b)
negative: the less you run the less distance of your jump
c)
positive: the further your running start the less your distance
13.
What type of correlation does this graph have?
a)
Negative
b)
no association
c)
positive
14.
Find the slope for the trend line.
a)
2
b)
1/2
c)
-2
d)
-1/2
15.
a)
y = x ; 20
b)
y = x - 2 ; 18
c)
y = 2 ; 2
d)
y = 0.5x + 2 ; 12
16.
You are analyzing a scatter plot that has a negative correlation. What is true of the of the x and y values?
a)
As x increases, y decreases
b)
As x increases, y increases
c)
As x decreases, y decreases
17.
In this image, how would you describe the point that does not fit the pattern of the other dots?
a)
The point is a linear model.
b)
The point is an outlier.
c)
The point is the range.
d)
The point is the median.
18.
As the age of the car increases, its value decreases. Which scatterplot represents this relationship?
a)
A
b)
B
c)
C
d)
D
19.
Describe the correlation in the graph shown.
a)
Weak Negative
b)
Weak Positive
c)
Strong Negative
d)
Strong Positive
20.
In a scatterplot, an outlier...
a)
...is something we didn't learn in 8th grade
b)
...is a point on the origin
c)
...is a point that is far outside the main cluster of points/ordered pairs
d)
...is a group of points that are close together
21.
In a scatterplot, a cluster...
a)
...is something we didn't learn in 8th grade
b)
...is a point on the origin
c)
...is a point that is far outside the main cluster of points/ordered pairs
d)
...is a group of points that are close together
22.
As x increases, y increases shows ........
a)
correlation coefficient
b)
causation
c)
positive association
d)
negative association
23.
Which sentence describes the relationship shown on this scatter plot?
a)
As the temperature decreases, the visitors increase.
b)
As the temperature increases, the number of visitors increases.
c)
As the visitors increase, the temperature decreases.
d)
No correlation
24.
Which scatter plot shows a linear relationship between x and y?
a)
Graph A
b)
Graph B
c)
Graph C
d)
Graph D
25.
The graph above shows a line of best fit for data collected on the distance bicyclists have remaining in relation to the amount of time they have been riding. What is the equation of the line of best fit?
a)
y = -25x + 170
b)
y = 25x + 170
c)
y = -(5/8) x + 170
d)
y = (5/8) x + 170
100 %
