On a Scatterplot, a Correlation of -1

question 26

Multiple Choice

On a scatterplot, a correlation of -1.00 appears as a

• A)straight line that slopes upward to the right.
• B)horizontal straight line.
• C)curved line.
• D)straight line that slopes downward to the right.

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Definitions:

Sample Correlation Coefficient

measures the strength and direction of the linear relationship between two variables in a sample.

P-Value

A measure in statistical hypothesis testing representing the probability of obtaining test results at least as extreme as the ones observed, assuming the null hypothesis is true.

Significant Level

The likelihood of incorrectly dismissing the null hypothesis, often represented by the symbol alpha (α).

Standard Error Of Estimate

The standard deviation of the observed values from the regression line, indicating the precision of the regression estimate.