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alexandr402 [8]
4 years ago
13

I need help with this question

Mathematics
1 answer:
love history [14]4 years ago
7 0
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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Answer:

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