The Following Frequency Distribution Represents the Number of Hours Studied

question 103

Multiple Choice

The following frequency distribution represents the number of hours studied per week by a sample of 50 students. The mean number of hours studied is ____.

• A) 7
• B) 8
• C) 22.8
• D) 480

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Definitions:

Dark Skin

Skin type with higher melanin content, providing greater protection against ultraviolet radiation but varying significantly within and across different populations.

Small Intestine

A part of the gastrointestinal tract between the stomach and large intestine, where most of the digestion and absorption of nutrients occurs.

Lactase

An enzyme in the small intestine that enables humans to assimilate lactose (milk sugar).

Melanin

A pigment found in most organisms, responsible for coloration of the skin, hair, and eyes, and protection against UV radiation.