Thread: Normal distribution problem

Probability Problem

I have a question on the following problem:

The number of tons of ore produced in a mine every week is a random variable with mean 10 and standard deviation 16. If production is observed for 64 weeks, calculate:

For the mine is closed, the average production during the 64 weeks should be at least 14 tons. What is the probability that the mine be closed?

I did the following:

Calculate the probability that the average is above 14. In this case, use:



where, Substituting, we find that With this finds your chance.

is right or wrong?

Thank you very much as always ...

A big welcome

Originally Posted by Dogod11

Probability Problem

I have a question on the following problem:

The number of tons of ore produced in a mine every week is a random variable with mean 10 and standard deviation 16. If production is observed for 64 weeks, calculate:

For the mine is closed, the average production during the 64 weeks should be at least 14 tons. What is the probability that the mine be closed?

I did the following:

Calculate the probability that the average is above 14. In this case, use:



where, Substituting, we find that With this finds your chance.

is right or wrong?

Thank you very much as always ...

A big welcome

Your question reads in a disjointed way, but it looks like your solution is correct.

Ok. yeah think so,


Many thanks,

see you soon.