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Mathematics 20 Online
OpenStudy (anonymous):

How do we find the theoretical probability of an event?

OpenStudy (skullpatrol):

Any ideas?

OpenStudy (anonymous):

no, i really dont know but i know that Theo, Probability means a value that describes the likelihood of an event, based on what we know about the circumstances

OpenStudy (skullpatrol):

That is a good starting definition.

OpenStudy (anonymous):

yeah, but whats the answer, lol

OpenStudy (skullpatrol):

Let's take a simple example of flipping a two sided fair coin.

OpenStudy (anonymous):

ok.......

OpenStudy (skullpatrol):

what do we know about the circumstances?

OpenStudy (anonymous):

um, im not sure

OpenStudy (skullpatrol):

Try it yourself, get a coin and start flipping it.

OpenStudy (anonymous):

HTH

OpenStudy (anonymous):

head, tail

OpenStudy (skullpatrol):

Do it 10 times and record the results please.

OpenStudy (anonymous):

HTT , HTH , THH , TTT , HHH , THH , THT, HHT, TTH, HHH,

OpenStudy (skullpatrol):

How many heads do you expect?

OpenStudy (anonymous):

not many 10 i suppose

OpenStudy (skullpatrol):

I count 17/30

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

i got the answer. thanks!!!!!!!!!!!!

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