A Sample of 2,500 People Was Asked How Many Cups

question 69

Multiple Choice

A sample of 2,500 people was asked how many cups of coffee they drink in the morning. You are given the following sample information. ​ The variance of the number of cups of coffee is

• A) 1.06.
• B) 1.03.
• C) 2.25.
• D) 1.24.

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Definitions:

REM Sleep

A stage of sleep characterized by rapid eye movement, vivid dreams, and increased brain activity.

N3 Sleep

The deepest stage of non-REM (Rapid Eye Movement) sleep, characterized by delta brainwaves and considered crucial for physical restoration and memory consolidation.

Heredity And Environment

The two main factors that influence individual development, including genetics (heredity) and external factors (environment).

Rapid Eye Movements

Are quick, jerky movements of the eyes that occur during REM sleep, a stage associated with vivid dreaming.