Scatterplots Lesson and Quiz

Scatterplots Lesson and Quiz

Multiple Choice

What type of correlation does the given graph show?

• Postive

• Negative

• No Correlation

Multiple Choice

What type of correlation does the given graph show?

• Postive

• Negative

• No correlation

Multiple Choice

The scatterplot below shows what?

• Postive trend

• Negative trend

• No trend

Multiple Choice

What type of correlation does the given graph show?

• Positive

• Negative

• No correlation

Multiple Choice

What type of correlation does the graph show below?

• Positive

• Negative

• No correlation

What is a line of best fit?

When data is collected, points do not form a straight line, but they may approximate to a linear relationship

A trend line or line of best fit is a line that is

VERY CLOSE to most of the data points.

It is used to make conjectures (predictions)

Multiple Choice

Which graph shows the best line of fit?

Multiple Choice

Which graph shows the best line of fit?

Multiple Choice

Which graph shows the best line of fit?

Multiple Choice

Which graph shows the best line of fit?

Multiple Choice

Which graph shows a line of best fit (trend line) for the scatter plot?

• Graph A

• Graph B

• Graph C

• Graph D

Multiple Choice

Which of the following lines represents the line of best fit for the scatter plot?

• A
• B
• C
• D

Multiple Choice

What is a trend line used for?

• To make predictions

• To make the graph look pretty

• To connect the points

Make a prediction!

What will the weight of the shipment be for 7 books?

Make a Prediction!

How many visitors would the beach have at 90 degrees?

Multiple Choice

Based on the scatterplot, about how much money would a group of 10 people be expected to spend on food and beverages at this restaurant?

• $135
• $115
• $105
• $150

Multiple Choice

Based on this scatterplot, approximately what score would a student with 6 absences expect to receive on the final exam?

• 65

• 92

• 67

• 76

Multiple Choice

Based on the trend in the data, approximately how many free throws would a player be expected to make if he attempted 60 free throws?

• 50
• 35
• 25
• 60

Multiple Choice

Based on the scatterplot, what is the best prediction of the average amount of money spent on groceries for a household of7 people?

• $240

• $190

• $210

• $300

Multiple Choice

Based on the scatterplot, what is the best prediction of the average number of hours a person spends at work every week, if that person spends an average of 10 hours on recreational activities every week?

• 33 hours
• 85 hours
• 50 hours
• 65 hours