The "let's roll" game uses a number cube with the numbers 2,4,6,8,10, and 12. there are prizes for rolling any number less than 6. how likely is it to roll a number less than 6?

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.