Answer Key
CHAPTER 8 Graphs, Patterns, and Probability
Lesson 1

Activity (page 315)
1. Favorite subject of pupils from Rico Faustino Primary Academy
2. Number of pupils
3. Math
4. Filipino
5. 5 or 6
6. 72 or 73
7. 100
8. Favorite subject chosen by the pupils

On the Road to Learning (page 318 and 319)
A.
1. number of pupils
2. snack
3. Favorite Snack Among Grade 4 Pupils
4. Pork barbecue
5. Spaghetti
6. 60
7. 10

Creating My Math Word Corner (page 320)
Sample answers: graph, bar graph, single vertical bar graph, single horizontal bar graph, double vertical bar
graph

Showing What I Have Learned (pages 321 to 323)
Accomplishing the Standard
A.
1. The best interval is C, because the range of number is close to the given.

B.
1. Favorite pets of grade 4 pupils
2. Dog
3. Cat
4. 9
5. 13
6. 7
7. 8
8. 54

Extending Beyond the Standard

Understanding How I Learned (page 323)
Answers will vary. Possible answers:
1. Yes, because I got them right.
2. No. It takes time to graph.
3. Yes. I may ask some help from classmates

Chapter 8