You Have an Interval/ratio Variable

question 45

Multiple Choice

You have an interval/ratio variable. It is very negatively skewed. You want to report just one measure of central tendency. Which of the following is correct?

• A) there are a few cases with very high values; report the mean
• B) there are a few cases with very high values; report the median
• C) there are a few cases with very low values; report the mean
• D) there are a few cases with very low values; report the median

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Definitions:

EEG Patterns

EEG patterns refer to the visual representation of the electrical activity of the brain as recorded by an electroencephalogram, useful in diagnosing conditions like epilepsy or sleep disorders.

Frequency

Number of cycles a wave completes in a given time.

Delta

In general contexts, refers to the fourth letter of the Greek alphabet (Δ, δ), but can indicate change in mathematical and scientific expressions.

Circadian Rhythms

Biological processes that display an endogenous, entrainable oscillation of about 24 hours, affecting various biological functions such as sleep-wake cycles.