1. The sizes, in square feet, of the 20 rooms in a student residence hall at a certain university are summarized in the following histogram. Number of Rooms 7- 6 1 0 100 150 200 250 300 350 Room Size (square feet) (a) Based on the histogram, write a few sentences describing the distribution of room size in the residence hall. (b) Summary statistics for the sizes are given in the following table. Mean Standard Deviation Min QI Median Q3 Max 231.4 68.12 134 174 253.5 292 315