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On the midnight shift, the number of patients with head trauma in an emergency room has the probability distribution shown below X 012345 Px .05.34.26.20

On the midnight shift, the number of patients with head trauma in an emergency room has the probability distribution shown below

X 012345

Px .05.34.26.20 .10.05

Calculate mean 3 decimalsand standard deviation 2 decimals

I already have the answer to the mean.

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