A Sample of N = 25 Scores Has Mean M

question 40

Multiple Choice

A sample of n = 25 scores has mean M = 20 and variance s² = 9.What is the sample standard deviation?​

• A)​3
• B)​4.5
• C)​9
• D)​81

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Definitions:

Chancre

A painless ulcer, particularly associated with the primary stage of syphilis, serving as an early marker of the disease.

Reproductive System

The system in humans and other organisms that works to produce offspring, including organs such as the ovaries and testes.

Urinary System

The urinary system is a group of organs responsible for producing, storing, and expelling urine; it includes the kidneys, ureters, bladder, and urethra.

Gastrointestinal System

The digestive tract and its accessory organs, responsible for the digestion and absorption of nutrients and the expulsion of waste.