To determine the number of trout in a lake, a conservationist catches trout, tags them and throws them back into the lake. Later, 42 trout are caught14 them are tagged. How many trout would the conservationist expect to be in the lake

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?