Chapter Exam

Chapter-14 Data Handling — Online MCQ Test

Q: Which type of graph uses circles divided into sectors to show data?

Answer: C. Pie chart — A pie chart represents data using sectors of a circle. Each sector shows a part of the whole.

Q: In a bar graph, what does the height of each bar represent?

Answer: B. The value or frequency of the data — The height of a bar shows how many times a category occurs or the value it represents.

Q: If a pie chart sector measures 90°, what fraction of the whole circle does it represent?

Answer: C. 1/4 — 90° out of 360° is 90/360 = 1/4, so it represents one-fourth of the whole.

Q: A bar graph has a scale of 1 unit = 5 students. If a bar reaches 7 units, how many students does it represent?

Answer: C. 35 — If 1 unit represents 5 students, then 7 units represent 7 × 5 = 35 students.

MATHS · Samacheer Kalvi 8th · Tamil Nadu State Board

Practice Chapter-14 Data Handling with a free chapter-wise online MCQ test for Tamil Nadu State Board Samacheer Kalvi 8th MATHS. This chapter covers: pie chart bar graph data Covers pie charts bar graphs and interpretation of data. AI-generated questions from basic to board-exam level, with instant results and explanations.

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Chapter-14 Data Handling — Important Questions & Answers (FAQ)

Frequently asked questions from Tamil Nadu State Board Samacheer Kalvi 8th MATHS — Chapter-14 Data Handling, with answers and explanations. These are sample questions; the exam has its own separate question set.

Which type of graph uses circles divided into sectors to show data?

A. Bar graph
B. Line graph
C. Pie chart ✓
D. Histogram

Answer: C. Pie chart
A pie chart represents data using sectors of a circle. Each sector shows a part of the whole.

In a bar graph, what does the height of each bar represent?

A. The colour of the data
B. The value or frequency of the data ✓
C. The order of the data only
D. The average of the data

Answer: B. The value or frequency of the data
The height of a bar shows how many times a category occurs or the value it represents.

If a pie chart sector measures 90°, what fraction of the whole circle does it represent?

A. 1/2
B. 1/3
C. 1/4 ✓
D. 3/4

Answer: C. 1/4
90° out of 360° is 90/360 = 1/4, so it represents one-fourth of the whole.

Which statement is correct about a bar graph and a pie chart?

A. Both are used only for angles
B. Bar graphs show categories with bars, while pie charts show parts of a whole ✓
C. Pie charts are used only for integers
D. Bar graphs are always circular

Answer: B. Bar graphs show categories with bars, while pie charts show parts of a whole
Bar graphs compare values using bars, while pie charts divide a circle to show parts of a total.

A bar graph has a scale of 1 unit = 5 students. If a bar reaches 7 units, how many students does it represent?