Events X and Y Are Independent of Each Other

question 2

Multiple Choice

Events X and Y are independent of each other. If the probability of event X occurring is 1 in 4, and the probability of event Y occurring is 1 in 5, the probability of both events occurring is ____.

• A) (1/4)²+ (1/5)²= (1/16) + (1/25) = (25/400) + (16/400) = 41/400
• B) (1/4) + (1/5) = (5/20) + (4/20) = 9/20
• C) (1/4)²(1/5)²= (1/16)(1/25) = 1/400
• D) (1/4)(1/5) = 1/20
• E) (1/4 + 1/5)²= (5/20 + 4/20)²= (9/20)²= 81/400

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Definitions:

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Issues that affect a significant number of people within a society, often challenging the community's ability to function effectively.

An Ethnic Group

Comprises people whose perceived cultural markers are deemed socially significant. Ethnic groups differ from one another in terms of language, religion, customs, values, ancestors, and the like.

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The study of places and the relationships between people and their environments.

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