1. what data are represented by the stem-and-leaf plot below?

3 | 7 8 9
4 | 1 3 7
5 | 2 4

key: 4 | 1 means 41

a. 37, 38, 39, 41, 43, 47, 52, 54
b. 73, 83, 93, 14, 34, 74, 25, 45
c. 7, 8, 9, 1, 3, 7, 2, 4
d. 37, 38, 39, 14, 34, 74, 25, 45

2. find the mode and the median of the data in the stem-and-leaf plot below.

5 | 4 4 8
6 | 0 3 5
7 | 3 4 6
8 | 2 5
9 | 7 8

key: 6 | 3 means 63

a. no mode; 73
b. 63; 73.5
c. 54; 73
d. no mode; 73.5