Question 1

What does a scatter plot show?

Accepted Answer

the relationship between two variables

Answer

the frequency of an event

Answer

the total sum of values

Answer

the average of a set of numbers

Question 2

Which of the following best describes a positive correlation in a scatter plot?

Accepted Answer

As one variable increases, the other variable also increases.

Answer

There is no discernible pattern between the variables.

Answer

As one variable increases, the other variable decreases.

Answer

Both variables remain constant.

Question 3

In a scatter plot, what does each point represent?

Accepted Answer

An individual data point with values for two variables.

Answer

A predicted outcome based on the data

Answer

A line connecting two variables

Answer

The average of all the data points

Question 4

What might a scatter plot with no clear pattern indicate about the relationship between two variables?

Accepted Answer

There is no significant correlation between the variables.

Answer

Both variables are identical.

Answer

There is a strong negative correlation.

Answer

There is a strong positive correlation.

Question 5

What is the purpose of adding a line of best fit to a scatter plot?

Accepted Answer

To summarize the trend of the data points.

Answer

To show the exact values of all points

Answer

To change the scale of the axes

Answer

To indicate how many points there are

Question 6

How can outliers be identified in a scatter plot?

Accepted Answer

By spotting points that are far away from the general cluster of data points.

Answer

By looking for points that lie directly on the line of best fit.

Answer

By finding points that form a perfect line with other points.

Answer

By counting the number of points in the plot.

Question 7

What could a scatter plot with a downward slope suggest about two variables?

Accepted Answer

As one variable increases, the other variable decreases.

Answer

Both variables increase together.

Answer

Both variables are constant.

Answer

There is no relationship between the variables.

Question 8

What does it mean if a scatter plot shows a cloud of points with no discernible direction?

Accepted Answer

There is likely no correlation between the variables.

Answer

The variables have a strong positive correlation.

Answer

The variables have a strong negative correlation.

Answer

The variables are identical.

Question 9

What does the x-axis typically represent in a scatter plot?

Accepted Answer

One of the variables being analyzed.

Answer

The dependent variable only

Answer

The average of the values

Answer

The total number of data points

Question 10

Why might a scientist use a scatter plot to present data?

Accepted Answer

To visualize the relationship between two quantitative variables.

Answer

To list all individual data values

Answer

To sort data into categories

Answer

To show the cumulative frequency

Question 11

What does the trend line in a scatter plot represent?

Accepted Answer

The general direction or pattern of the data points

Answer

The minimum value in the data set

Answer

The average of all data points

Answer

The exact value of each data point

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