##### standard deviation and probability distribution

label Statistics
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A police department reports that the probabilities that 0, 1, 2, and 3 burglaries will be reported in a given day are 0.50, 0.38, 0.10, and 0.02, respectively. Find the standard deviation for the probability distribution. Round answer to the nearest hundredth.

Jun 16th, 2015

std=0.23.........................................................................................................

Jun 16th, 2015

I don't understand bc my choices on the homework assignment are

σ = 1.02 ,σ = 0.55σ = 0.74 or σ = 0.98. I didn't get any of those answers and why I asking.

Jun 16th, 2015

those can not be the answers....just compare with this one...very slit  diffrent but the answer should near or close to0.2....

'4) A police department reports that the probabilities that 0, 1, 2, and 3 burglaries will be reported in a given day are 0.50, 0.38, 0.11, and 0.01, respectively. A) 0.63 B) 0.25 C) 1.13 D) 1.50'

Jun 16th, 2015

Ok I will leave it blank bc those are the only choices I have I double checked. I guess that';s why I could;t figure out the answer

Jun 16th, 2015

maybe dear!...sorry for the disappointing question....bc it's not even hard so the answers are misleading.

Jun 16th, 2015

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Jun 16th, 2015
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Jun 16th, 2015
Oct 18th, 2017
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