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Quiz Chapter 12: Data Handling

10 questions · Form 1 Mathematics Bab 12: Data Handling

Question 1 of 10Score: 0

Which chart uses circular sectors to show proportions of a whole?

Full Question List & Answer Key

Prefer reading to quizzing? All 10 questions are listed below with the answer and explanation under each one.

1. Which chart uses circular sectors to show proportions of a whole?

  1. Bar Chart
  2. Line Graph
  3. Pie Chart
  4. Dot Plot
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Answer: C

A pie chart divides a circle into sectors representing proportions of a total.

2. The sector angle for 'Math' in a pie chart is 120°. If the total number of respondents is 90, how many students chose Math?

  1. 20
  2. 30
  3. 40
  4. 45
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Answer: B

Frequency = (Sector Angle / 360°) × Total = (120° / 360°) × 90 = 13 × 90 = 30 students.

3. If 45% of respondents prefer football, what is the corresponding sector angle in a pie chart?

  1. 162°
  2. 145°
  3. 180°
  4. 90°
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Answer: A

Sector angle = 45% × 360° = 0.45 × 360° = 162°.

4. What type of data is 'the exact mass of apples in a crate'?

  1. Categorical data
  2. Continuous numerical data
  3. Discrete numerical data
  4. Qualitative data
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Answer: B

Mass is measured on a continuous scale, making it continuous numerical data.

5. Which data collection method would be most effective to find out how many cars pass through a junction per hour?

  1. Interview
  2. Questionnaire
  3. Observation
  4. Experiment
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Answer: C

Counting passing vehicles is directly done by observation (or recording traffic).

6. Which representation retains all individual original numerical data values while showing distribution?

  1. Pie Chart
  2. Stem-and-Leaf Plot
  3. Bar Chart
  4. Line Graph
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Answer: B

A stem-and-leaf plot displays all original data values split into stems and leaves.

7. A bar chart shows the frequency of grades A, B, C, and D as 8, 12, 10, and 6 respectively. What percentage of students scored grade B?

  1. 20%
  2. 30%
  3. 33.3%
  4. 40%
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Answer: C

Total students = 8 + 12 + 10 + 6 = 36. Percentage of B = (1236) × 100% = 33.3%.

8. A survey collected data on the number of goals scored in 10 matches: 2, 0, 1, 3, 2, 1, 2, 4, 1, 2. What is the mode?

  1. 1
  2. 2
  3. 3
  4. 4
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Answer: B

The score '2' appears 4 times, which is more frequent than any other score.

9. What is the primary advantage of a dot plot?

  1. Shows trends over time clearly
  2. Compares proportions as parts of a whole circle
  3. Displays individual data points and highlights clustering or outliers
  4. Calculates exact percentages automatically
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Answer: C

A dot plot clearly shows every individual data value, cluster, gap, and outlier along a line.

10. Which of the following is DISCRETE numerical data?

  1. Number of pets owned by a family
  2. Time spent studying for an exam
  3. Distance from home to school
  4. Volume of water in a tank
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Answer: A

The number of pets is countable as whole numbers (0, 1, 2, ...), so it is discrete numerical data.

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