Scatter Plots Predictions

What type of correlation does this graph have?

• positive linear

• negative linear

• no

• exponential growth

• quadratic

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Statistics

Scatter Plots

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books. Use the trend line to predict how many chapters would be in a book with 180 pages.

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Scatter Plots

Find the equation of the line of best fit for the given data (Hint: should the slope be + or - ?)

• y=-4.19x + 163.41

• y= 4.19x - 163.41

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Line of Best Fit

The number of siblings you have and your height.

• Positive correlation

• Negative correlation

• No correlation

• quadratic

• exponential

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Statistics

Scatter Plots

What is the correlation?

• Negative correlation

• No correlation

• Positive correlation

• Quadratics

• Exponential

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Scatter Plots

As the age of the car increases, its value decreases. Which scatterplot represents this relationship?

• A

• B

• C

• D

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Scatter Plots

Which of the following could be a possible line of best fit for the data? (Hint is the slope positive or negative, is the y-intercept positive or negative)

• y = 5/4x-21

• y = -5/4x-21

• y = 5/4x+21

• y = -5/4x + 21

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Line of Best Fit

A restaurant sells pizza for the prices in the data table. How much would we expect a 7 toppings pizza cost?

• $22.50

• $18

• $42

• $21

• $25

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Statistics

Line of Best Fit

What type of correlation does this scatter plot show?

• positive linear association

• negative linear association

• no association

• exponential association

• quadratic association

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Statistics

Scatter Plots

About how many male teachers were there in 2013?

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Scatter Plots

Line of Best Fit