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what is standard deviation of w
if w=x+y+z
show me the how to do the identity please
 one year ago
 one year ago
what is standard deviation of w if w=x+y+z show me the how to do the identity please
 one year ago
 one year ago

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wioBest ResponseYou've already chosen the best response.1
Do you remember the equation for the standard deviation?
 one year ago

wioBest ResponseYou've already chosen the best response.1
Just sub in \(x+y\) for \(x\) and see what happens.
 one year ago

jayz657Best ResponseYou've already chosen the best response.0
not i dont think thats quite right sorry i know theres an identity for this
 one year ago

wioBest ResponseYou've already chosen the best response.1
You will probably use identities as you go.
 one year ago
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