Scatter Plots Review

Multiple Choice

What is the purpose of a scatter plot?

• To show relationships between two variables

• To display data in a bar format

• To represent data in a pie chart

• To list data points in a table

Multiple Choice

How do you draw a line of best fit?

• By connecting the dots

• By averaging the data points

• By using a ruler to draw straight lines

• By estimating the trend

Multiple Choice

What does each point in a scatter plot represent?

• A variable

• A piece of data

• An axis

• A graph type

Multiple Choice

What does the y-axis represent in a scatter plot?

• Independent variable

• Dependent variable

• Data points

• X-axis

Multiple Choice

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

• Dependent variable

• Independent variable

• Data points

• Y-axis

Multiple Choice

What is a scatter plot?

• A type of bar graph

• A graph made of points that shows the relationship between two variables

• A pie chart

• A line graph

Multiple Choice

What are the different types of correlation trends described in the image?

• Positive

• Negative

• No correlation

• All of the above

Multiple Choice

What is an outlier in data analysis?

• A point far away from the others

• A group of points close together

• The average of a data set

• The median value of a data set

Multiple Choice

What is a line of best fit?

• A line that shows the general trend of the data

• A line that connects all data points

• A line that represents the average of the data

• A line that shows the maximum value of the data

Multiple Choice

What does the slope tell us about a function?

• It tells us the maximum value

• It tells us how fast something is changing

• It tells us the minimum value

• It tells us the average value

Multiple Choice

What is the difference between interpolation and extrapolation?

• Interpolation is predicting inside the data

• Extrapolation is predicting outside the data

• Interpolation is less reliable than extrapolation

• Extrapolation is always accurate

Multiple Choice

What do positive and negative residuals indicate in a graph?

• Positive means actual is below the line, negative means above

• Positive means actual is above the line, negative means below

• Both indicate the same thing

• Neither indicates anything

Multiple Choice

What is the formula for calculating residuals?

• Residual = actual value - predicted value

• Residual = predicted value - actual value

• Residual = actual value + predicted value

• Residual = actual value / predicted value

Multiple Choice

What type of problems are presented in this image?

• Math Problems

• Science Problems

• Practice Problems

• History Problems

Open Ended

If the slope is 2, what does that mean in context?

Open Ended

What is an outlier?

Multiple Choice

Strength of Association. Points are very close to a line. Is this: a) Strong b) Weak

• Strong

• Weak

Multiple Choice

Identify the Trend. A scatter plot shows points going upward from left to right. Is this: a) Positive b) Negative c) No correlation

• Positive

• Negative

• No correlation

Multiple Choice

What message is being conveyed in this image?

• Great Job!

• Keep going!

• You can do it!

• All of the above

Open Ended

What kind of relationship would you expect between hours studied and test scores? Why?

Open Ended

What does a residual of 3 indicate in the context of predicted and actual values?

Multiple Choice

Is predicting a value inside the data range interpolation or extrapolation?

• Interpolation

• Extrapolation

• Both

• Neither

Multiple Choice

What is the predicted value when x = 10 on the line of best fit?

• 20

• 25

• 30

• 15

Multiple Choice

What does the starfish represent in this image?

• Success

• Failure

• Indifference

• Confusion

Multiple Choice

What should you do first when taking a test?

• Look at the direction first

• Start answering immediately

• Skip difficult questions

• Check the time frequently

Poll

How confident do you feel about this topic now?

• Very confident
• Somewhat confident
• Not confident