Cassie rolls a fair number cube with 6 faces labeled 1 through 6. She rolls the number cube 300 times. Which result is most likely
Cassie will roll a 1 of a 2 about 50 times
Cassie will roll a 1 of a 2 exactly 50 times
Cassle will roll an even number about 150 times
Cassie will roll an even number exactly 150 times

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.