indiawalker626
indiawalker626
02-05-2018
Mathematics
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I need help with this question
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Аноним
Аноним
02-05-2018
4/8 is the prob of pb . =1/2 right
4/8 is the prob of 2 pb= 1/2
then just multiply 1/2 times 1/2 = 1/4
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