3 One percent of a certain model of cars have defective mufers. Suppose 400 cars in this model are ready to ship. a. Find an approximate probability that more than 5 cars in the shipment have defective mufers. b. Find an approximate probability that 3 to 6 cars (inclusive) in the shipment have defective mufers.

A. 0.2149

B. 0.6512

Step-by-step explanation:

Hello,

Please follow up properly with the steps in the attachment to get the right answer. Also use a good scientific calculator to arrive at the answer

We used a poisson distribution for This problem

λ = n p

n = 400

P = 1/100

λ = np = 400 x 1/100 = 4

P(X=x) = e^- λ. λ ^x/x!

= e^-4* 4^x/x!

A.

Probability of more than 5

1-p(0)+p(1)+p(2)+p(3)...p(5)

The answer is 0.2149

B.

Probability of between 3 cars and 6 cars

P(3)+p(4)...p(6)

= 0.6512

Please check attachment for complete solution

1 is c

2 is a

3 is a

step-by-step explanation:

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this