what is the Greek letter

Mathematics
Tutor: None Selected Time limit: 1 Day

1)      In a normal distribution, the mean, median, and the mode are all the same.  They are denoted by the Greek letter ___?

Apr 4th, 2015

Sigma, σ

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Apr 4th, 2015

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Apr 4th, 2015
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Apr 4th, 2015
Feb 27th, 2017
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