Population = 8.2 million = 8,200,000
Homicides = 7,172
a) Deaths per capita = Homicides / Population = 7,172 /8,200,000 = 0.000875 deaths per capita
b) 8.75 x 10 ^-4
c) Population : 320 million : 320,000,000
7,172 /8,200,000 = x / 320,000,000
Cross multiply:
320,000,000 ( 7,172 ) = 8,200,000 x
320,000,000 ( 7,172 ) / 8,200,000 = x
x = 279,883 Deaths