SOLUTION: About 20% of the population is hopeless romantic.There are 2 that are being surveyed.What is the probability that at least one is hopelessly romantic?

Question 560064: About 20% of the population is hopeless romantic.There are 2 that are being surveyed.What is the probability that at least one is hopelessly romantic?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
About 20% of the population is hopeless romantic.There are 2 that are being surveyed.What is the probability that at least one is hopelessly romantic?
-----
p(at least one) = 1 - P(none of 2 are h.r.)
= 1 - (0.80)^2
---
= 1 - 0.64
---
= 0.36
============
Cheers,
Stan H.
RELATED QUESTIONS
About 20% of the population is hopeless romantic.What is the probability that at least... (answered by richard1234)

about 13% of the population of a large country is hopelessly romantic if two people are... (answered by stanbon)

14 percent of population is hopelessly romantic. If 2 people are randomly selected, what... (answered by stanbon)

A recent poll found that 42% of those surveyed are worried about aggressive drivers on... (answered by Fombitz)

A recent poll by the diabetes association found that 30% of those surveyed are worried... (answered by stanbon)

There are 8 action, 3 romantic comedies, and 5 children's DVDs on a shelf. Suppose two... (answered by ikleyn)

In a group of 20 person, 5 are females. If 3 persons are picked out of 20 at random, what (answered by jorel1380,Edwin McCravy)

About 16% of the population is math phobic. If two people are randomly selected what is... (answered by ewatrrr)

there are 20 computers and 3 are defective. Three are removed and tested. What is the... (answered by chips)