Day 1: Standard Deviation Puzzles #2
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TopazJ 9 years ago Considering this is just an introduction to statistics, and not really a "contest", it wouldn't hurt to attempt to explain what the "Z-Score" is for those of us who had to google it, instead.
Z = (Score - mean) / Standard Deviation.
Score in our case being 0.9025
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claguna 9 years ago I completely missed the fact that we had transform cm to meters. Thanks for the hint
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zeliboba 9 years ago Please write problem statement more formally, I couldn't understand it. What is "z"?
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PRASHANTB1984 9 years ago As explained in the statement z = "the number of standard deviations away from the mean that the particular child is."
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vedsarkushwaha 9 years ago I think, adding 1 example will explain the problem statement better. :)
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luizacc 9 years ago I agree with @vedsarkushwaha This is supposed to "introduce" you to statistics...
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BMichaels 9 years ago Google the "z score".
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pantzzzz 9 years ago I feel like this one was a bit too simple.
*SPOILERS, DO NOT READ IF YOU HAVEN'T SOLVED****
All you have to do is subtract the known height from the mean, and divide by the std-dev. Unless that was the point of this challenge. In which case I will promptly stfu =P
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Vinprogress 9 years ago Answer is -9.00?
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cagdas Asked to answer 9 years ago It can't be negative
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Vinprogress 9 years ago Answer is in negative?
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