(marka ) in 1 - 2 + 2/3
(5marks)
each 30cm
A ribbon is 4m long. How
long can be cut from the ribbon? (5 marks)
many pieces

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.