Given an Urn Containing 3 Red Balls, 4 Green Balls

question 17

Multiple Choice

Given an urn containing 3 red balls, 4 green balls, and 5 yellow balls. What is the probability of drawing either a red ball or a green ball on a single draw?

• A) 7/12
• B) 1/2
• C) 2/5
• D) 2/3
• E) 3/7

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Definitions:

Observational Studies

Research methods that involve observing and analyzing the natural behavior of subjects without influencing or controlling the variables.

Experiments

A procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.

Conducting A Survey

The process of gathering information or data from a sample of individuals in a systematic manner.

Smoking Causes

Factors directly linked to the act of smoking, leading to various health issues and diseases.