Chapter-14 Data Handling — Online MCQ Test
MATHS · Samacheer Kalvi 8th · Tamil Nadu State Board
Practice Chapter-14 Data Handling with a free chapter-wise online MCQ test.
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.
Chapter-14 Data Handling — Important Questions & Answers
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.
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.
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.
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.
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?
- A. 25
- B. 30
- C. 35
- D. 40
Answer: C. 35
If 1 unit represents 5 students, then 7 units represent 7 × 5 = 35 students.
If 1 unit represents 5 students, then 7 units represent 7 × 5 = 35 students.