mean 300lbs, stand. dev. 50lbs; prob 25 pkgs exceed 8200lbs

[Godisgood]

The weights of packages received by a department store have a mean of 300 pounds and a standard deviation of 50 pounds. What is the probability that 25 packages received at random and loaded on an elevator will exceed the specified safety limit of the elevator, listed as 8200 pounds.

 

[Deleted member 4993]

Re: Statistics

The weights of packages received by a department store have a mean of 300 pounds and a standard deviation of 50 pounds. What is the probability that 25 packages received at random and loaded on an elevator will exceed the specified safety limit of the elevator, listed as 8200 pounds.

You have posted 5 problems - without showing a line of work.

Please show us your work, indicating exactly where you are stuck - so that we know where to begin to help you.