Class 7 Data Handling Worksheet – Mean, Range and Data Interpretation
Understanding Data Handling is a key foundation in mathematics. This Class 7 Data Handling Worksheet provides a basic set of problems to help students master Mean, Range and Data Interpretation. These worksheets include exercises on calculating the mean and range of data sets, and solving data interpretation word problems, allowing students to apply their understanding to real-life situations. This approach helps in problem-solving skills and fosters a strong foundation in mathematical reasoning. Regular practice will help students gain confidence and master data handling operations effectively.
Explore more on mastering data handling with our other worksheets and resources: Class 7 Maths Worksheets for more practice, or
Check out this helpful guide on Understanding Data Handling.
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Worksheet Details
📌 Worksheet Name: Class 7 Data Handling Worksheet -1
📌 Topic: Mean, Range and Data Interpretation
📌 Format: Printable PDF
📌 Difficulty Level: Beginner
📌 Includes: Concept-based questions, word problems, and practice exercises
📌 Answer Key: Available
Class 7 Data Handling Questions
1. The marks obtained by 10 students in a quiz are: 7, 9, 5, 8, 6, 9, 4, 10, 6, 8. Answer the following questions based on this data:
(a) What is the highest mark obtained?
(b) What is the lowest mark?
(c) What is the range of the marks?
2. You collected the number of steps you walked each day for a week: 4000, 3500, 5000, 4500, 4200, 4700, 3900. Based on this, answer:
(a) What is the total number of steps you walked in the week?
(b) Find the average number of steps per day.
(c) What is the range of your steps in a day?
3. The prices (in rupees) of 5 different pens are: 10, 15, 12, 18, and 20. Calculate:
(a) The total cost of all pens.
(b) The average price of a pen.
(c) The difference between the costliest and the cheapest pen.
4. Ravi collected rainfall data (in mm) for 5 days: 10, 0, 25, 15, and 5. Help him answer:
(a) What was the total rainfall in these 5 days?
(b) What is the average rainfall?
(c) What is the range of the rainfall?
5. In a game, Meena scored 45, 50, 60, and 55 points in four rounds. What was her average score?
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Class 7 Data Handling Worksheet Answer Key:
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1. The marks obtained by 10 students in a quiz are: 7, 9, 5, 8, 6, 9, 4, 10, 6, 8.
(a) The highest mark is 10.
(b) The lowest mark is 4.
(c) The range is 10 – 4 = 6.
(d) The mean is (7+9+5+8+6+9+4+10+6+8)/10 = 72/10 = 7.2.
(e) Students who scored more than 7.2 are: 8, 9, 9, 10, 8 → 5 students.
2. You collected the number of steps you walked each day for a week: 4000, 3500, 5000, 4500, 4200, 4700, 3900.
(a) Total steps = 4000 + 3500 + 5000 + 4500 + 4200 + 4700 + 3900 = 29,800 steps.
(b) Average steps = 29800 ÷ 7 = 4257.14 (approx).
(c) Range = 5000 – 3500 = 1500 steps.
(d) Days with steps > 4257.14: 4500, 4700, 5000 → 3 days.
(e) The day with the highest number of steps is the day with 5000 steps.
3. The prices (in rupees) of 5 different pens are: 10, 15, 12, 18, and 20.
(a) Total cost = 10 + 15 + 12 + 18 + 20 = ₹75.
(b) Average price = ₹75 ÷ 5 = ₹15.
(c) Range = ₹20 – ₹10 = ₹10.
(d) ₹20 (costliest) – ₹15 (average) = ₹5 more than the average.
(e) New total = ₹75 + ₹25 = ₹100; New average = ₹100 ÷ 6 = ₹16.67 (approx).
4. You recorded the number of hours you studied each day for 6 days: 2, 3, 1.5, 2.5, 2, 3.5.
(a) Total hours = 2 + 3 + 1.5 + 2.5 + 2 + 3.5 = 14.5 hours.
(b) Average hours = 14.5 ÷ 6 = 2.42 hours (approx).
(c) Range = 3.5 – 1.5 = 2 hours.
(d) Days with > 2 hours: 3, 2.5, 3.5 → 3 days.
(e) Days with < 2.42 hours: 2, 1.5, 2 → 3 days.
5. In a survey, these are the number of books read by 10 students in a month: 1, 3, 2, 4, 3, 2, 3, 1, 5, 2.
(a) Mean = (1+3+2+4+3+2+3+1+5+2)/10 = 26 ÷ 10 = 2.6.
(b) Range = 5 – 1 = 4.
(c) Books > mean (2.6): 3, 4, 3, 3, 5 → 5 students.
(d) Books < 3: 1, 2, 2, 2, 1 → 5 students.
6. A gardener measured the heights of 6 sunflower plants as follows (in cm): 120, 135, 140, 125, 130, 145.
(a) Tallest = 145 cm, Shortest = 120 cm.
(b) Range = 145 – 120 = 25 cm.
(c) Mean = (120 + 135 + 140 + 125 + 130 + 145) ÷ 6 = 795 ÷ 6 = 132.5 cm.
(d) Plants > 132.5 cm: 135, 140, 145 → 3 plants.
(e) New total = 795 + 150 = 945; New mean = 945 ÷ 7 = 135 cm.
7. You are planning a class picnic and recorded the amount of money each student contributed: ₹100, ₹120, ₹90, ₹110, ₹130, ₹100, ₹110, ₹90.
(a) Total = ₹100 + ₹120 + ₹90 + ₹110 + ₹130 + ₹100 + ₹110 + ₹90 = ₹850.
(b) Average = ₹850 ÷ 8 = ₹106.25.
(c) Range = ₹130 – ₹90 = ₹40.
(d) Contributions > ₹106.25: ₹110, ₹120, ₹130, ₹110 → 4 students.
8. Ravi collected rainfall data (in mm) for 5 days: 10, 0, 25, 15, and 5.
(a) Total rainfall = 10 + 0 + 25 + 15 + 5 = 55 mm.
(b) Average = 55 ÷ 5 = 11 mm.
(c) Range = 25 – 0 = 25 mm.
(d) Rainfall > 11 mm: 15 mm, 25 mm → 2 days.
(e) Yes, 1 day had no rainfall (0 mm).
9. In a game, Meena scored 45, 50, 60, and 55 points in four rounds.
Mean = (45 + 50 + 60 + 55) ÷ 4 = 210 ÷ 4 = 52.5.
10. Anjali baked 12, 14, 13, 15, 16 cupcakes on five different days.
Mean = (12 + 14 + 13 + 15 + 16) ÷ 5 = 70 ÷ 5 = 14.