Asked by Cing


7
10
of your friends prefer to take a math test on Friday.
7
20
prefer Friday and Wednesday. What fraction of those who prefer Friday also prefer Wednesday?
Answered by Steve
7/10 + 7/20 = 21/20

So, 1/20 prefer both.

But how can someone prefer two days?
Answered by samantha
answer is 1/2
p(wednesday|friday)=p(Fridayand Wednesday)/p(Friday)
7/20/7/10=1/2
Answered by tay
7
10
of your friends prefer to take a math test on Friday.
7
20
prefer Friday and Wednesday. What fraction of those who prefer Friday also prefer Wednesday?
Answered by Mitchell Nolan
so i am in 11th grade and i am doing geometry and i need help with this question
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