We Sometimes Combine Two Row or Column Categories in a Chi-Square

question 65

Multiple Choice

We sometimes combine two row or column categories in a chi-square test when:

• A)observed frequencies are more than 5.
• B)observed frequencies are less than 5.
• C)expected frequencies are more than 5.
• D)expected frequencies are less than 5.

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Definitions:

REM Sleep

A stage of sleep characterized by rapid eye movements, more dreaming and bodily movement, and faster pulse and breathing.

Electrooculogram

A technique that measures the resting potential of the retina to track eye movements.

Electrooculography

A technique for measuring the corneo-retinal standing potential that exists between the front and the back of the human eye.

Eye Movements

The voluntary or involuntary movement of the eyes, which plays a crucial role in vision, allowing us to focus on and scan our environment.