Cartons of milk from a particular supermarket are advertised as containing 1 litre of milk,but in fact the volume of the milk in a cartoon is normally distributed with mean 1012 ml and standard deviation 5 ml.

Question

i.Find the probability that exactly 3 cartons in a sample of 10 cartons contain more than 1012 ml.

Answer 1

You are working with the z-score : )

Answer 2

Yes I am.Tell me how to do.

Answer 3

First of all find the probabilty of a carton containing more than 1012 ml
using the webpage I gave you earlier.
Then use the Binomial distribution to find the prob(exactly 3 of 10) ....

Answer 4

Thanks.

Answer 5

well, what was your answer?

Answer 6

0.1171