Question: Please help me anwser this im confused on this subject and need work to support my anwser 3) Normal Distribution applied to data: In 2012,

Please help me anwser this im confused on this subject and need work to support my anwser

3) Normal Distribution applied to data: In 2012, the murder rates (per 100,000 residents) for the 50 states and the District of Columbia (D.C.) had a mean of 4.45 and a standard deviation of 2.37. Source: a. D.C. had a murder rate of 13.9. Find its z-score. b. If the distribution of murder rates were roughly normal, would this be unusually high? Explain. c. Below is given a frequency distribution for the murder rates of the 50 states and D.C. Based on this distribution, the mean, standard deviation, and z score for D.C., do you think that the distribution of murder rates is approximately normal? Why or why not? 12 10 8 ON 1 2 3 4 5 6 7 8 9 10 11 12 13

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