Which statement is not true about the data shown by the box plot below?
a. The median of the upper half of the data is 66.
b. The data point 30 is the smallest element of the data.
c. The median of the data is 58.
d. The interquartile range is 26.

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.