Managers of a sports arena's parking garage keep track of the duration of time customers park their cars in the garage. Shown in the stem-and-leaf display below is a sample of such parking durations (in minutes).

For this sample, 22 of the durations were from weekday use of the garage, and 21 were from weekend use. Answer the questions that follow.

what are the ranges of the parking duration for the two groups?

Which group had the higher parking duration?

Which group had more parking durations in the 150s?

Parking durations (minutes) Weekday 8 944310 997554 8621 99876 Key: 1588 15 16 17 19 15 Weekend 7 23577 136688 344789 149 7 157