Answer:
(a) Each crime has 20% chance of being solved according to the question.
You use Binomial Theorem:
P(x) = nCx*p^x*(1-p)^n-x
where p is probability of solving crime, n is number of crimes, and x is theoretical number of crimes solved
p = 0.2
n = 3
x = 0
P(0) = (0.8)^3 =0.512
Answer = 0.512
I believ the answer is: 2 million
As the jurisiction of the law enforcment employees got closer to the federal level , the number of employment become fewer. From that 2 million employees, around 58% are employed at local level, around 31% are employed at the state level, and around 11% are employed at the federal level
You should try googling it
Some cities allow citizens to hold town hall meetings to vote on new laws
