Data Handling and Presentation | IT

Question 2

Based on the pictograph of 'Modes of Travelling', answer the following questions:

  • Which mode of travel is used by the most number of students?
  • Which mode of travel is used by the least number of students?
Question diagram 1
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Solution
Understand the Question
  • A pictograph uses symbols/pictures to represent data. Here, each smiley symbol represents 11 student.
  • By counting the number of symbols for each mode of travel, we can determine:
    • School bus: 1111 students
    • Walking: 77 students
    • Public bus: 55 students
    • Private car: 44 students
    • Cycle: 33 students
  • We then compare these numbers to find which mode is used by the most and least number of students.

(i) Which mode of travel is used by the most number of students?

Step 1 · Count and Compare Students for Each Mode

Count of students using each mode:

  • Private car: 4 smiley faces=4 students4 \text{ smiley faces} = 4 \text{ students}
  • Public bus: 5 smiley faces=5 students5 \text{ smiley faces} = 5 \text{ students}
  • School bus: 11 smiley faces=11 students11 \text{ smiley faces} = 11 \text{ students}
  • Cycle: 3 smiley faces=3 students3 \text{ smiley faces} = 3 \text{ students}
  • Walking: 7 smiley faces=7 students7 \text{ smiley faces} = 7 \text{ students}Diagram 1

The highest number of students is 1111, which corresponds to the School bus.

Answer

(i) School bus

(ii) Which mode of travel is used by the least number of students?

Step 1 · Identify the Mode with the Least Students

From the pictograph counts: Cycle=3 students\text{Cycle} = 3 \text{ students}

The lowest number is 33, which corresponds to Cycle.

Answer

(ii) Cycle

Common Mistakes
  • Miscounting Symbols: In rows with many symbols (such as the school bus with 1111 smileys), miscounting can lead to an incorrect comparison.
  • Ignoring the Key/Scale: Always check the value of one symbol (here, 1 smiley=1 student1 \text{ smiley} = 1 \text{ student}). If a symbol represents multiple units, counting symbols alone without multiplying will give incorrect totals.

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Q2

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  • Which mode of travel is used by the most number of students?
  • Which mode of travel is used by the least number of students?
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Q14
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