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Standard IX

Mathematics

Probability

A, B, C and D...

Question

A, B, C and D are the only possible outcomes of a trial. So if P(A) + P(D) = 0.75, then P(C) + P(B) =

0.25

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0.75

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0.50

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0.10

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Solution

The correct option is A
0.25

Since A, B, C and D are the only possible outcomes, therefore,

P(A) + P(B) + P(C) + P(D) = 1

Substituting the given values,

P(C) + P(B) = 1 - 0.75 = 0.25

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A, B, C and D are the only possible outcomes of a trial. So if P(A) + P(D) = 0.75, then P(C) + P(B) =

The correct option is A 0.25Since A, B, C and D are the only possible outcomes, therefore, P(A) + P(B) + P(C) + P(D) = 1 Substituting the given values, P(C) + P(B) = 1 - 0.75 = 0.25

The correct option is A
0.25

Since A, B, C and D are the only possible outcomes, therefore,

P(A) + P(B) + P(C) + P(D) = 1

Substituting the given values,

P(C) + P(B) = 1 - 0.75 = 0.25