Scatter Plots Linear Quadratic Exponential Neither

Estimate the correlation coefficient for this scatterplot.

• r = 1.2

• r = 0.89

• r = 0

• r = -0.89

After performing analyses on a set of data, Mrs. Schoeneck examined the scatter plot of the residual values for each analysis. Which scatter plot indicated the best linear fit for the data?

• A

• B

• C

A person travels by car.  They record their miles driven in a data table.  Calculate the linear regression equation of this data.

• y = 61.93x - 1.79

• y = -1.79x + 61.93

• y = 0.016x + 0.03

• y = 0.03x + 0.016

The table shown is comparing a person's foot length to their height in cm. Calculate a line of best fit.

• f(x) = 25.05x + 5.57

• f(x) = 5.57x + 25.05

• f(x) = -5.57x + 25.05

• f(x) = 5.57x - 25.05

Match the scatter plot to the equation that could represent the equation of its trend line.

• None of the descriptions match

• The relationship is linear

• The relationship is not linear.

What is the trend for this scatter plot

• Negative

• Positive

• None

This table represents what kind of function?

• Linear

• Exponential Growth

• Exponential Decay

• Quadratic

What type of function does this table represent?

• Linear

• Exponential

• Neither

Write the exponential regression equation for the data.

• Y=8.16(2.7)^x

• Y=81.6(2.7)^x

• Y=8.16(.27)^x

• Y=8.16(27)^x

Which graph represents data that has a correlation coefficient close to -1?

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