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Yuri [45]
2 years ago
12

Bag A contains black balls and white balls

Mathematics
1 answer:
deff fn [24]2 years ago
5 0

Using the probability of complementary events, it is found that q = 0.25.

<h3>What is a probability?</h3>

A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.

When two events are complementary, the <u>sum of their probabilities is of 1</u>.

For this problem, black balls and white balls are complementary, hence:

p + q = 1.

We have that p = 3q, hence:

3q + q = 1

4q = 1.

q = 1/4

q = 0.25.

More can be learned about probabilities at brainly.com/question/14398287

#SPJ1

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