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Or 5220/10000
=261/500 ??
=261/500 ??
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Science is a refinement of everyday thinking -- Albert Einstein -
my result is 0.684
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Remember, I'd like the answer in smallest fraction possible!
Edit: I will tell the correct answer along with a solution tomorrow at say about 9am. Goodnite!Comment
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ok, then it is 171/250
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Well thank you, Paul! Sweet words from a sweet man!Originally Posted by PaulTheSoave
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First of all, pardon my English mathematical terminology. Probability is, as you already know, propitious results divided by possible results.
Total number of propitious results are:
21 + 22 + … + 100 + 20*100 = 80(21 + 100)/2 + 2000 = 6840 OR
21 + 22 + ... + 99 + 21*100 = 79(21 + 99)/2 + 2100 = 6840
according to the arithmetic sum.
Total number of possible results are:
100^2 = 10000
So the probabilty is:
6840/10000 = 171/250
So the correct answer is 171/250
Congrats, kaikaixiner!
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Oooh. So close.
I used excel to make a probability table
Must have miscounted.Science is a refinement of everyday thinking -- Albert EinsteinComment
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There is already a maths quiz going on in the forums
You play a long slow deadweight red to a corner pocket. As it approaches the pocket, a kamikaze woodlouse crawls out from under the cushion and makes its way across the table, conflicting with the path of the red precisely at the point the red gets there. The red, needless to say, veers off course, and the future of the woodlouse is uncertain. - The Statman
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I know Mit.
Just started it as a bit of phun
Science is a refinement of everyday thinking -- Albert EinsteinComment
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