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one department has 2.46 police per 1.000 residents A Convert this raw score to a z...

one department has 2.46 police per 1.000 residents

A Convert this raw score to a z score

b. find area between the mean and z

c. find area in the tail of distribution beyond z

There is no mean nor standard deviation that is the question and all the information I was given

math   Statistics-And-Probability   
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