The thickness x of a protective coating applied to a conductor designed to work in corrosive conditions follows a uniform distribution over the interval [20 , 40] microns. Find the mean, standard...

The thickness
x
of a protective coating applied to a conductor designed to work in corrosive conditions follows a uniform distribution over the interval [20,
40] microns.

1. Find the mean, standard deviation.


2. Cumulative distribution function of the thickness of the protective coating.


3. Find also the probability that the coating is less than 35 microns thick.