The mean monthly rent of students at Oxnard University is $810 with a standard deviation of $175. (a) John’s rent is $1,350. What is his standardized z-score?
(C) How high would the rent have to be to qualify as an outlier?

The patient recovery time from a particular surgical procedure is normally distributed with a mean of 5.2 days and a standard deviation of 1.7 days. what is the probability of spending more than 2 days in recovery? (round your answer to four decimal places.)