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Find the probability of the indicated event if P (A) = 0.25 and P (B) = 0.45.

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Find the probability of the indicated event if P (A) = 0.25 and P (B) = 0.45.

P (A U B) if  A, B are mutually exclusive

asked Feb 16, 2015 in PRECALCULUS by anonymous

1 Answer

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Step 1 :

Mutually exclusive events :

If E  and F  are mutually exclusive events,

image
Step 2 :

The events are image and image.

Since A  and B  are mutually exclusive events,

image

Substitute image and image in above equation.

image

image

Solution :

image

answered Feb 16, 2015 by Thomas Apprentice

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