Scatterplots and Trend Lines Review

What is the correlation for the following Scatter Plot.

• Weak Positive

• No Correlation

• Strong Negative

• Weak Negative

• Strong Positive

What is the correlation for the following Scatter Plot.

• Weak Positive

• No Correlation

• Strong Negative

• Weak Negative

• Strong Positive

What is the correlation for the following Scatter Plot.

• Weak Positive

• No Correlation

• Strong Negative

• Weak Negative

• Strong Positive

Given the following Scatter Plot, select the option that is most likely the r value.

Given the following Scatter Plot, select the option that is most likely the r value.

Given the following Scatter Plot, select the option that is most likely the r value.

Correlation coefficient is the statistic that measures the strength and direction of a linear association between two quantitative variables.

• True

• False

If r=0, there is a strong correlation.

• True

• False

r = -0.3 is considered to have...

• moderate negative correlation

• weak negative correlation

• no correlation

• strong negative correlation

Estimate the correlation coefficient for this scatterplot.

• A) r = -0.9

• B) r = 1

• C) r = 0.9

• D) r = -1