The police have stated that 20 of the items sold by pawn sho

The police have stated that 20% of the items sold by pawn shops in the city have been stolen. Ralph has just purchased 4 items from one of the city

Solution

X follows a binomial distribution with p = 0.20 and n =4

The pdf of X is given below in a table

From the above pdf table

Answers

a)P(X=0)= 0.4096 b) P(X<2) =0.8192 c)P(12) = 0.0272

P(X>=2) = 0.1808

P(X<=2) = 0.9728