In a Chi-Square Test of Independence, the Number of Degrees

question 43

Multiple Choice

In a chi-square test of independence, the number of degrees of freedom equals the:

• A)number of observations minus one.
• B)number of categories minus one.
• C)number of rows minus one times the number of columns minus one.
• D)number of sample observations minus the missing observations.

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Definitions:

Cardiorespiratory Fitness

The level of capacity and efficiency of the heart, lungs, and circulatory system in supplying oxygen during sustained physical activity.

Regular Exercise

Physical activity performed on a consistent basis to improve or maintain one's health and fitness.

Staying Motivated

The process of maintaining a high level of enthusiasm and determination to achieve specific goals.

Endurance Activity

Physical activities that increase heart rate and breathing for an extended period, improving cardiovascular health.