3 Answered Questions for the topic dispersion

02/24/18

#### Why isn't the sky violet?

It is said that blue color of our sky is due to its shorter wavelength and it is scattered more than red but violet has the shortest wavelength then why isn't our sky violet.

Dispersion Standard Deviation

01/30/18

#### Show that for any 2 numbers a and b, standard deviation is given by |a-b|÷2

The variance is taken to solve it and to show the s2= |a+b|
2
I don't know why

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