Sea level is defined as an altitude of 0 ft. a scuba diver dives into the water and, in 3 min, her altitude drops from 0 ft to −126 ft. what was the diver’s average change in altitude, per minute, for that time period? a. −348 ft b. −42 ft c. 42 ft d. 348 ft

The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with a mean of 12611261 chips and a standard deviation of 118118 chips. (a) determine the 2626th percentile for the number of chocolate chips in a bag. (b) determine the number of chocolate chips in a bag that make up the middle 9696% of bags. (c) what is the interquartile range of the number of chocolate chips in a bag of chocolate chip cookies?