TEST- Unit 4-Describing Data

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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Statistics

Scatter Plots

Find the equation of the line of best fit for the given data

• y=163.41x + 4.19

• y=-163.41x + 4.19

• y=-4.19x + 163.41

• y= 4.19x - 163.41

• There is no linear correlation of the data set

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Statistics

Line of Best Fit

The number of siblings you have and your weight.

• Positive correlation

• Negative correlation

• No correlation

• quadratic

• exponential

Tags

Statistics

Scatter Plots

What is the correlation?

• Negative correlation

• No correlation

• Positive correlation

• Quadratics

• Exponential

Tags

Statistics

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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Statistics

Scatter Plots

Which of the following could be a possible line of best fit for the data?

• y = -5/2x + 20

• y = -x + 19

• y = x + 20

• y = 2/3x + 15

• y = -5/4x + 21

Tags

Statistics

Line of Best Fit

A restaurant sells pizza for the prices in the data table. Calculate the linear regression equation of the data.

• y = 3/2x + 12

• y = 12x + 1.5

• y = 2/3x - 8

• y = -8x + 0.67

• y = 2/3x + 12

Tags

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

Tags

Statistics

Scatter Plots

About how many male teachers were there in 2013?

Tags

Scatter Plots

Line of Best Fit