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danielle02
Group Title
Find the probability of selecting 2 people at random who were born in the same month
 one year ago
 one year ago
danielle02 Group Title
Find the probability of selecting 2 people at random who were born in the same month
 one year ago
 one year ago

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NotTim Group TitleBest ResponseYou've already chosen the best response.0
within what range? there's high possibility in a group of 25 people
 one year ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.1
The probability is 1/12. Say you choose 2 people: person A and person B If person A was born in october for example, then person B has 12 months to choose from in terms of which month s/he was born in. Only one month will match with person's A month of birth. So that's why the probability is 1/12.
 one year ago

xxfreshboy Group TitleBest ResponseYou've already chosen the best response.0
He's exactly right There are 12 months in one year and randomly you chose one month so therefore the chances are 1/12. But since there are two people person A has a probability of 1/12 and person B has probability of 1/12.To find out the probability that both are both in the same month multiply the two probabilities and you get 1/144. so therefore answer is 1 out 144 chances there born in the same month! Hope I helped :D
 one year ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.1
no, it's just 1/12, not 1/144
 one year ago

danielle02 Group TitleBest ResponseYou've already chosen the best response.0
thanks for the help guys
 one year ago
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