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Sigma typically means "Total" or "All" It's used often in Statistics equations. So Just as [Delta]T would be "Change in Temperature", [Sigma]T would mean "total temperatures". So if you had 10 temperatures and the total change was 25 degrees C? you could find the average change in T by doing... [Delta]T divided by [Sigma]T. Make more sense, now?

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βˆ™ 15y ago
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Anonymous

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βˆ™ 4y ago

together for buing higher heights

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Q: What is the value of sigma?
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