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GREYUIT [131]
3 years ago
9

An event is three times as likely as its complement. What is the probability of the event?

Mathematics
1 answer:
serg [7]3 years ago
5 0
E = some event
C = complement of event E
Since the events are complementary, this means P(E)+P(C) = 1

We know that P(E) = 3*P(C) since "an event is three times as likely as its complement"

So we can replace P(E) with 3*P(C) and then isolate P(C)
P(E) + P(C) = 1
3*P(C) + P(C) = 1
4*P(C) = 1
P(C) = 1/4

The probability of the complementary event is 1/4
So the probability of the original event is 3/4 (three times 1/4)

Answer: 3/4

note: in decimal form, 3/4 = 0.75
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Answer:

The common ratio of a geometric series is \dfrac14

4

1 ​

start fraction, 1, divided by, 4, end fraction and the sum of the first 4 terms is 170

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Step-by-step explanation:

The common ratio of the geometric series is given as:

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The sum of first n terms of a geometric sequence is given b;

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