An umbrella you bought is shaped like a regular octagonal pyramid with a side length of four feet and a slant height of five feet. estimate the amount of fabric that the umbrella has.

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.)