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aleksley [76]
3 years ago
10

If the probability of an event is 2/7, what must be the probability of its complement?

Mathematics
2 answers:
RoseWind [281]3 years ago
4 0

Answer:

\frac{5}{7}

Step-by-step explanation:

Let

x------->the probability of its complement

we know that

The Complement Rule states that the sum of the probabilities of an event and its complement must equal 1

so

in this problem

\frac{2}{7}+x=1

solve for x

Adds -\frac{2}{7} both sides

x=1-\frac{2}{7}

x=\frac{5}{7}

hichkok12 [17]3 years ago
3 0
Which one is it 5/7 or 2/7
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