A Pearson Correlation of R = -0

question 5

True/False

A Pearson correlation of r = -0.90 indicates that the data points are clustered close to a line that slopes down to the right.

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Definitions:

Normal Distribution

Exhibiting symmetry around the mean, this probability distribution reveals that there are more occurrences close to the mean than far away from it.

Chi-squared Distribution

A statistical distribution that is used to describe the distribution of a sum of squared random variables, often used in hypothesis testing.

Degrees of Freedom

The number of independent pieces of information used in the calculation of a statistic, typically the size of the data set minus the number of parameters estimated.

Area

The measurement of the extent of a two-dimensional surface or shape, typically expressed in square units.