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probability (1 Viewer)

H

homijoe

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Jun 12, 2007
Messages
81
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Male
HSC
2009
hey , just a quik question in rolling two dices what is the probability of getting exactly one 3???
 
V

vds700

Member
Joined
Nov 9, 2007
Messages
861
Location
Sydney
Gender
Male
HSC
2008
P(one 3) = P(3, not 3) + P(not 3, 3)
=(1/6)(5/6) + (5/6)(1/6)
= 5/36 + 5/36
=10/36
 
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