Suppose we know the length of time a battery will hold a charge is a normal distribution with a mean of 50 hours and a standard deviation of 15 hours. What is the probability that this measurement is between 50 and 70 hours?
Solution is attached for more clarity.
In this problem mean µ=50 hours and standard deviation = 15 hours.
X is the random variable with which are concerned.
Given that it ...
Solution explains to calculate probabilty for battery charge lenght. Given that battery charge lenght follows nornal distribution.