How do you calculate these longhand?

The population mean and standard deviation are given below. Find the required probability and determine whether the given sample mean would be considered unusual. For a sample of n = 62, find the probability of a sample mean being less than 24.5 if p = 25 and o = 1.31. Click the icon to view page 1 of the standard normal table. Click the icon to view page 2 of the standard normal table. For a sample of n =62, the probability of a sample mean being less than 24.5 if p = 25 and o = 1.31 is (Round to four decimal places as needed.)