Answers Geometry Applications of Probability — TestQuestion 7

7

QuizMultiple Choice

Applications of Probability — Test

Question 7 • Geometry

Which statement is true about whether Z and B are independent events?

Answer

A

Z and B are not independent events because P times open paren Z divides B close paren is not equal to P times B .

B

Z and B are independent events because P times open paren Z divides B close paren is equal to P times B .

C

Z and B are not independent events because P times open paren Z divides B close paren is not equal to P times Z .

D

Z and B are independent events because P times open paren Z divides B close paren is equal to P times Z .

Explanation

For events Z and B to be independent, knowing that B occurred must not change the probability of Z. In symbols, this means P(Z given B) = P(Z). So the true statement is that Z and B are independent when those probabilities are equal.

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