Question: Return to question Item 3 On the midnight shift, the number of patients with head trauma in an emergency room has the probability distribution shown

Return to questionItem 3

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

x

 0 1 2 3 4 5 Total

P(x)

 .01 .40 .29 .18 .10 .02 1.00

(a) Calculate the mean and standard deviation. (Round your mean value to 2 decimal places and standard deviation to 3 decimal places.)

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