A Set of 15 Scores from a Population Has a Sum

question 45

Essay

A set of 15 scores from a population has a sum of squares value of 675.
a. What is the variance?
b. What is the standard deviation?

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Definitions:

Sleep Deprivation

The condition of not obtaining sufficient sleep, which can negatively affect physical and mental health.

Excessive Daytime Sleepiness

A condition characterized by persistent sleepiness and often an inability to stay awake during the day, even after adequate nighttime sleep.

Part-Time Job

Employment with fewer hours per week than a full-time job, allowing for flexibility and often used to supplement income or fit around other commitments.

Benzodiazepine

A class of drugs acting on the central nervous system, often prescribed for anxiety, insomnia, and other conditions.