What was the total amount of the checks listed on the opposite side of the deposit slip? A deposit ticket showing three checks, 123.51, 211.00, and 214.14, and another source, 521.24, all of which total 919.89 $521.24 $548.65 $919.89 $1069.89

The coverage of a base station of a telecommunication company forms a disk with a radius of (kilometers). let be the distance of a cellphone from a base station. assume that the location of cellphones in use are randomly uniformly distributed within the disk. calculate the mean and variance for the random variable.