Question

The stem-and-leaf plot shows kilometers walked by participants in a charity benefit walk. Use

it to answer the questions.

Kilometers Walked for Charity

12

3

3 6

7

9

9

13

1

1

4

5

5

14

0

0

2

3

3

8

8

9

15

2

2

2

.

2

3

5 5 7

16

4

5

5

99

17

3

5

Key: 123 means 12.3

a. How many people participated in the walk?

b. How many of the walkers traveled more than 14 kilometers?

Answer 1

a)35 people participated in the walk

b)22 people walked more than 14 km

Explanation:

12|3 3 6 7 9 9

13| 1 1 4 5 5

14| 0 0 2 3 3 8 8 9

15| 2 2 2 2 2 3 5 5 7

16| 4 5 5 9 9

17|3 5

Key: 12|3 means 12.3

a)

Count the number of leaves

Number of leaves = 35

So,35 people participated in the walk

b)

Count the number of people who walked more than 14 km

Exclude 14|0

14| 2 3 3 8 8 9

15| 2 2 2 2 2 3 5 5 7

16| 4 5 5 9 9

17|3 5

22 people walked more than 14 km