AnswersMathematics 8Constructing Scatterplots

Constructing Scatterplots — Quiz Answers

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Which scatterplot is labeled correctly if it is meant to show the relationship between the number of minutes that gym members spend running on a treadmill and the number of calories that they burn?

A
Image with description A scatter plot shows six discrete data points on a grid. The vertical axis is labeled y, with grid lines at 75-unit intervals and labeled values of 150, 300, 450, 600, and 750. The horizontal axis is labeled x, with grid lines at 10-unit intervals and labeled values of 20 and 40. The data points are plotted at approximately (10 comma 175), (20 comma 300), (30 comma 410), (38 comma 430), (40 comma 640), and (50 comma 700).
B
Image with description A scatter plot shows six discrete data points on a coordinate grid. The vertical axis is labeled "Minutes" and y, with grid lines at 10-unit intervals and labeled values of 10, 20, 30, 40, and 50. The horizontal axis is labeled "Calories Burned" and x, with labeled values of 75, 225, 375, and 525. Major grid lines are spaced 37.5 units apart. The data points are plotted at approximately (188 comma 10), (210 comma 16), (300 comma 20), (385 comma 25), (400 comma 31), and (420 comma 36).
C
Image with description A scatterplot titled Minutes versus Calories Burned is shown on a first quadrant coordinate plane. The x axis is labeled minutes and ranges from 0 to 50 in increments of 10. The y axis is labeled calories burned and ranges from 0 to 750 in increments of 75. There is a point at (10 comma 175). There is a point at (20 comma 300). There is a point at (30 comma 415). There is a point at (35 comma 440). There is a point at (40 comma 650). There is a point at (50 comma 715).
D
Image with description A scatter plot shows seven discrete data points on a coordinate grid. The vertical axis is labeled "Members" and y, with grid lines at 10-unit intervals and labeled values of 10, 20, 30, 40, and 50. The horizontal axis is labeled "Calories burned" and x, with grid lines at 75-unit intervals and labeled values of 75, 225, 375, and 525. The data points are plotted at approximately (195 comma 11), (210 comma 16), (300 comma 20), (385 comma 25), (400 comma 31), and two closely spaced points near (420 comma 36).
3

What is the name of the type of data that a scatterplot is used to analyze?

A
quadvariate data
B
univariate data
C
bivariate data
D
trivariate data
4

Kevin went fishing and is using a scatterplot to analyze the relationship between the weight of each of the fish he caught in pounds and in kilograms. He uses the weight in pounds as the independent variable and the weight in kilograms as the dependent variable. Which statement is correct?

A
The points on the scatterplot will go up from left to right because as the weight in pounds increases, the weight in kilograms increases.
B
The points on the scatterplot will go down from left to right because as the weight in pounds increases, the weight in kilograms increases.
C
The points on the scatterplot will go up from left to right because as the weight in pounds increases, the weight in kilograms decreases.
D
The points on the scatterplot will go down from left to right because as the weight in pounds increases, the weight in kilograms decreases.
5

Which statement is correct when a scatterplot is constructed?

A
The dependent variable is the input variable and should be represented by the y -axis.
B
The independent variable is the input variable and should be represented by the x -axis.
C
The independent variable is the input variable and should be represented by the y -axis.
D
The dependent variable is the input variable and should be represented by the x -axis.
6

Which describes a correct way to construct a scatterplot?

A
When analyzing shoe size according to height, shoe size is the independent variable.
B
When analyzing the number of junk e-mails received each day of the week, the number of junk e-mails is the independent variable.
C
When analyzing the number of boys who participate in volleyball each year for several years, the number of boys who participate in volleyball is the dependent variable.
D
When analyzing the number of cups of hot tea that are sold during days with varying average temperatures, temperature is the dependent variable.
7

When a scatterplot is created from a table of values, which statement is correct?

A
It is possible for two points to have the same x -coordinate, but it is impossible for them to have the same y -coordinate.
B
It is possible for two points to have the same y -coordinate, but it is impossible for them to have the same x -coordinate.
C
It is possible for two points to have the same x -coordinate and the same y -coordinate.
D
It is impossible for two points to have the same x -coordinate or the same y -coordinate.
8

Which is the last step when creating and analyzing a scatterplot from a table of values?

A
Label the axes of the coordinate plane according to the input and output variables.
B
Identify if there is a relationship between the independent and dependent variables.
C
Plot the ordered pairs of the independent variable and the dependent variable on the coordinate plane.
D
Draw or obtain a blank coordinate plane.
9

Dependent variable C depends on both independent variable A and independent variable B. Which statement is correct?

A
The relationship between independent variable A and dependent variable C and the relationship between independent variable B and dependent variable C can both be analyzed using the same scatterplot.
B
Only the relationship between independent variable A and dependent variable C can be analyzed using a scatterplot.
C
The relationship between independent variable A and dependent variable C, and the relationship between independent variable B and dependent variable C can both be analyzed, but they must be analyzed using separate scatterplots.
D
Only the relationship between independent variable B and dependent variable C can be analyzed using a scatterplot.
10

How many variables are displayed in a scatterplot?

A
one along the x -axis, and two along the y -axis
B
one along the x -axis, and one along the y -axis
C
two along the x -axis, and one along the y -axis
D
two along the x -axis, and two along the y -axis

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