Find the Mean for the Given Sample Data

question 6

Multiple Choice

Find the mean for the given sample data.
-The normal monthly precipitation (in inches) for August is listed for 20 different U.S. cities. Find the mean of the data.

• A) 3.09 in.
• B) 2.80 in.
• C) 2.94 in.
• D) 3.27 in.

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Definitions:

Variables

Elements, features, or factors that are liable to vary or change within the context of a scientific study or experiment.

Regression Coefficient

A value that represents the degree of change in the dependent variable for a one-unit change in the independent variable in a regression analysis.

R

A programming language and software environment used for statistical analysis, graphics representation, and reporting.

Correlation Matrix

A table showing the correlation coefficients between sets of variables to summarize their mutual relationships.