Question

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

Answer 1

For #1, recall that the single stem-and-leaf plot has the tens digit on the left of the vertical bar, and the units digits to its right.
So
5|1,3,6
means 51, 53,56
So you can interpret the whole data set the same way.

For the second part, you will need to first interpret the data set like the first one, then apply the formulas to calculate mode and median.
Here's a link to help you in case you do not recall these formulas:
https://www.purplemath.com/modules/meanmode.htm