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Class 10 Statistics worksheet
CBSE Mathematics. Mean, median and mode of grouped data. Every sheet has 20 questions in three sections and an answer key, and the numbers change every time.
Sample questions
Real questions from this chapter, as the app sets them. Tap Answer to see the answer and working.
Section A · multiple choice
- 1.
The class mark of the class 40–44 is:
- 46
- 44
- 4
- 42
Answer
(d) 42
(40 + 44) ÷ 2 = 42
- 2.
The mean of 80, 72, 85, 66, 40, 10, 88 is:
- 55.13
- 65
- 441
- 63
Answer
(d) 63
441 ÷ 7 = 63
- 3.
For the data below, the modal class is: Class: 15–20, 20–25, 25–30, 30–35, 35–40 Frequency: 17, 12, 8, 14, 10
- 15–20
- 30–35
- 20–25
- 25–30
Answer
(a) 15–20
the highest frequency is 17
Section B · short answer
- 4.
Find the mean of this data. (Give your answer to 2 decimal places where needed.) Class: 0–5, 5–10, 10–15, 15–20, 20–25 Frequency: 15, 17, 6, 17, 9
Answer
11.56
class marks 2.5, 7.5, 12.5, 17.5, 22.5; Σfᵢxᵢ = 740, Σfᵢ = 64
- 5.
Find the mode of this data. (Give your answer to 2 decimal places where needed.) Class: 80–100, 100–120, 120–140, 140–160, 160–180, 180–200 Frequency: 14, 15, 8, 11, 10, 2
Answer
102.5
modal class 100–120: l = 100, f₁ = 15, f₀ = 14, f₂ = 8, h = 20
Section C · long answer
- 6.
The marks of students in a test are shown below. Find the mean mark. (Give your answer to 2 decimal places where needed.) Marks: 40–60, 60–80, 80–100, 100–120, 120–140 Number of students: 8, 9, 2, 4, 16
Answer
95.64
Σfᵢxᵢ ÷ Σfᵢ = 3730 ÷ 39
Fresh sheets for your child
In the app, every Statistics sheet is new: the app remembers the questions your child has already had and leaves them out. Print the sheet as a PDF, or use notebook mode and write the answers in a notebook.
Coming soon for Android and iPhone.