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guajiro [1.7K]
3 years ago
11

About 1313​% of the population of a large country is hopelessly romantichopelessly romantic. If two people are randomly​ selecte

d, what is the probability both are hopelessly romantichopelessly romantic​? What is the probability at least one is hopelessly romantichopelessly romantic​?
Mathematics
1 answer:
aleksandr82 [10.1K]3 years ago
5 0

Answer:

Probability both are hopelessly romantic = 0.0169

Probability at least one is hopelessly romantic = 0.2431

Step-by-step explanation:

We are given that about 1313​% of the population of a large country is hopelessly romantic.

Also, given two people are randomly​ selected.

Firstly, Let <em>Probability that the population of a large country is hopelessly romantic = P(R) = 0.13 </em>

(a) Probability both are hopelessly romantic is given by = Probability that first person is hopelessly romantic \times Probability that second person is hopelessly romantic

                         = P(R) \times P(R)

                         = 0.13 \times 0.13 = <u>0.0169</u>

(b) Now, Probability that the population of a large country is not hopelessly romantic = P(R') = 1 - P(R) = 1 - 0.13 = 0.87.

So, Probability at least one is hopelessly romantic is given by = 1 - Probability that none of them is hopelessly romantic

                         = 1 - (P(R') \times P(R'))

                         = 1 - (0.87 \times 0.87)

                         = 1 - 0.7569 = <u>0.2431</u>

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