Suppose , , and…

MATHEMATICS · Multi-part · A Level · Mathematics · Probability · Probability

Problem

Suppose

P(C) = \frac{9}{20}

,

P(D | C) = \frac{1}{4}

, and

P(D | C') = \frac{1}{5}

. (1) Find

P(D)

. (2) Are

C

and

D

independent events? Justify your answer.

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