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OpenStudy (anonymous):
i need help with Geometry
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OpenStudy (anonymous):
@alekos can you please help?
OpenStudy (alekos):
yeah sure
OpenStudy (anonymous):
A fair coin is tossed 5 times in a row. The exact probability of the coin landing heads exactly 2 times is ?
OpenStudy (anonymous):
@alekos
OpenStudy (alekos):
give me a minute
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OpenStudy (alekos):
There are 5C2 ways of getting two heads with 5 tosses, OK?
OpenStudy (anonymous):
ok
OpenStudy (alekos):
So can you tell me what 5C2 works out to?
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