According to the survey, the average amount of time spent studying for a math test was 35 minutes, with a standard deviation of 10 minutes. What range would you expect 95% of the sample’s study times to be between if the sample was approximately normal?

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.)