60ml of liquid is poured into a cuboidal tank with a length of 4.5cm, a width of 3.5cm and a height of10cm. what is the depth of the liquid in the tank

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.