A Statistic That Indicates the Strength and Direction of a Relation

question 176

Multiple Choice

A statistic that indicates the strength and direction of a relation between two variables is a ________________.

• A)relation coefficient
• B)association coefficient
• C)correlation coefficient
• D)causality coefficient

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Definitions:

Mean

The arithmetic average of a set of numbers, calculated by adding all the values together and dividing by the number of values.

25th Percentile

A measure indicating that 25 percent of the observed values fall below this point, also known as the first quartile.

Median

The middle value in a sorted list of numbers, effectively dividing the dataset into two equal parts.

75th Percentile

A value below which 75% of the observations in a group fall, often used to measure the upper quartile.