Question

solve and show work

Professor Spencer is interested in comparing homicide rates (.e. number of homicides per 100,000 population) among various American metropolitan areas. Rounding to the first decimal place, calculate the mean for the following distribution of homicide rates in the 12 metropolitan areas with the highest homicide rates in the U.S. in 2017. Round to the nearest tenth. St. Louis, MO: 64.9 Baltimore, MD: 51.1 New Orleans, LA: 40.6 Detroit, MI: 39.7 Cleveland, OH: 33.7 Las Vegas, NV: 31.4 Kansas City, KS: 31.2 Memphis, TN: 27.1 Newark, NJ: 25.6 Chicago, IL: 24.0 Cincinnati, OH: 23.8 Philadelphia, PA: 20.2

Answer 1

Let the given variable is x 64.9 51.1 40.6 39.7 33.7 31.4 31.2 27.1 25.6 24.0 23.8 20.2 413.3 Total = = x Mean = x/n = 413.3 / 12 = 34.4 (n = No. of observations in the sample = 12] The mean value is 34.4