A Survey Is Made in a Neighborhood of 80 Voters

question 38

Multiple Choice

A survey is made in a neighborhood of 80 voters. 65 are Democrats and 15 are Republicans. Of the Democrats, 35 are women, while 5 of the Republicans are women. If one subject from the group is randomly selected, find the probability the individual is either a woman or a Democrat.

• A) .538
• B) .813
• C) .500
• D) .438
• E) .875

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Definitions:

Marginal Mean

The average value of a variable across different levels of another variable, typically used in the context of analysis of variance.

Marginal Means

The average values of variables calculated at each level of another variable, often used in the analysis of variance.

Significant Main Effect

A statistically significant result in an ANOVA test, indicating a difference in group means across one independent variable.

Crime Area

An identified section or zone within a geographic location known to have higher rates of criminal activities or incidents.