Chapter-4 Data Handling and Presentation — Online MCQ Test
MATHS · Grade 6 · CBSE(NCERT)
Practice Chapter-4 Data Handling and Presentation with a free chapter-wise online MCQ test.
This chapter covers: data collection - tally marks - pictograph - bar graph - interpretation - pie charts.
AI-generated questions from basic to board-exam level, with instant results and explanations.
Chapter-4 Data Handling and Presentation — Important Questions & Answers
What is a tally mark used for in data handling?
- A. To represent numbers in a graphical form
- B. To count and record data quickly
- C. To calculate the average of data
- D. To create a pie chart
Answer: B. To count and record data quickly
Tally marks are a system of recording data where each mark represents one item, making counting quick and organized.
Tally marks are a system of recording data where each mark represents one item, making counting quick and organized.
In a tally mark system, how many items does one diagonal line represent?
- A. 1 item
- B. 3 items
- C. 5 items
- D. 10 items
Answer: C. 5 items
In tally marks, four vertical lines are crossed by one diagonal line to represent a group of 5 items, making counting easier.
In tally marks, four vertical lines are crossed by one diagonal line to represent a group of 5 items, making counting easier.
What is a pictograph?
- A. A graph using pictures or symbols to represent data
- B. A table showing numbers only
- C. A method of collecting raw data
- D. A circular chart divided into sectors
Answer: A. A graph using pictures or symbols to represent data
A pictograph uses pictures or symbols to represent quantities, making data easy to understand visually.
A pictograph uses pictures or symbols to represent quantities, making data easy to understand visually.
Which type of graph uses rectangular bars to represent data?
- A. Pictograph
- B. Pie chart
- C. Bar graph
- D. Line graph
Answer: C. Bar graph
A bar graph displays data using rectangular bars of different heights or lengths to represent quantities.
A bar graph displays data using rectangular bars of different heights or lengths to represent quantities.
If a pictograph shows that one symbol represents 5 apples, and there are 3 symbols for mangoes, how many mangoes are represented?
- A. 3 mangoes
- B. 5 mangoes
- C. 8 mangoes
- D. 15 mangoes
Answer: D. 15 mangoes
If one symbol = 5 mangoes, then 3 symbols = 3 × 5 = 15 mangoes. This requires understanding the scale in a pictograph.
If one symbol = 5 mangoes, then 3 symbols = 3 × 5 = 15 mangoes. This requires understanding the scale in a pictograph.
In a class survey, students were asked their favorite fruit. The results were: Apple - 12, Mango - 8, Banana - 5, Orange - 5. What is the total number of students surveyed?
- A. 25 students
- B. 30 students
- C. 20 students
- D. 35 students
Answer: B. 30 students
Total = 12 + 8 + 5 + 5 = 30 students. Adding all frequencies gives the total number of data points.
Total = 12 + 8 + 5 + 5 = 30 students. Adding all frequencies gives the total number of data points.
Which graph representation would be most appropriate to show the composition of a school's student population by grade level?
- A. Bar graph showing all grades with bars
- B. Line graph connecting grade points
- C. Pie chart dividing into sectors for each grade
- D. Pictograph with separate symbols for each grade
Answer: C. Pie chart dividing into sectors for each grade
A pie chart is ideal for showing parts of a whole (composition), showing how each grade contributes to the total student population.
A pie chart is ideal for showing parts of a whole (composition), showing how each grade contributes to the total student population.
A pictograph shows rainfall data where 🌧️ = 10 mm. Month A has 2.5 symbols and Month B has 3 symbols. What is the difference in rainfall between the two months?
- A. 5 mm
- B. 10 mm
- C. 15 mm
- D. 30 mm
Answer: A. 5 mm
Month A = 2.5 × 10 = 25 mm; Month B = 3 × 10 = 30 mm; Difference = 30 - 25 = 5 mm. Half symbols represent fractional values.
Month A = 2.5 × 10 = 25 mm; Month B = 3 × 10 = 30 mm; Difference = 30 - 25 = 5 mm. Half symbols represent fractional values.
In a data handling project, students collected information about 60 students' favorite sports. If the pie chart shows Basketball as a 72-degree sector, and Football as a 120-degree sector, how many more students prefer Football than Basketball?
- A. 8 students
- B. 10 students
- C. 12 students
- D. 15 students
Answer: A. 8 students
Basketball: (72/360) × 60 = 12 students; Football: (120/360) × 60 = 20 students; Difference: 20 - 12 = 8 students. Pro level: requires understanding sector angles, fractions, and multi-step calculation.
Basketball: (72/360) × 60 = 12 students; Football: (120/360) × 60 = 20 students; Difference: 20 - 12 = 8 students. Pro level: requires understanding sector angles, fractions, and multi-step calculation.
A pictograph about car colors uses symbols where each full symbol = 50 cars and half symbol = 25 cars. If Red has 5 full symbols and 1 half symbol, Blue has 4 full symbols and 1 half symbol, and Green has 6 full symbols, what is the difference between the color with maximum and minimum cars?
- A. 50 cars
- B. 75 cars
- C. 100 cars
- D. 125 cars
Answer: B. 75 cars
Red: (5×50) + (1×25) = 275; Blue: (4×50) + (1×25) = 225; Green: 6×50 = 300. Maximum (Green) - Minimum (Blue) = 300 - 225 = 75. Complex calculation with mixed whole and half symbols.
Red: (5×50) + (1×25) = 275; Blue: (4×50) + (1×25) = 225; Green: 6×50 = 300. Maximum (Green) - Minimum (Blue) = 300 - 225 = 75. Complex calculation with mixed whole and half symbols.