Guests in each hostel room 10
8
6
Number of hostel rooms
2
0-3
8-11
4-7
16-19
12-15 20-23
Number of guests

How many hostel rooms are there?
rooms

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?