- A35
- B70
- C31
- D39
Step-by-Step Solution
Counts: 35→3, 42→2, 50→1, 60→1, 70→1. The value 35 occurs most often, so mode = 35.
Answer: A) 35
The marks of 8 students are 35, 42, 50, 35, 60, 42, 35, 70. What is the mode?
Class 7Data HandlingData Handling
Key idea: Mode — the most common
The **mode** is the value with the highest frequency. Count occurrences:
- 2, 3, 3, 5, 7 → mode = 3 (appears twice).
- 1, 1, 2, 2, 3 → two modes: 1 and 2 (bimodal).
- 1, 2, 3, 4, 5 → no mode (all distinct).
Mode is the only 'average' that works for non-numeric data (e.g. most common shoe colour).
- 2, 3, 3, 5, 7 → mode = 3 (appears twice).
- 1, 1, 2, 2, 3 → two modes: 1 and 2 (bimodal).
- 1, 2, 3, 4, 5 → no mode (all distinct).
Mode is the only 'average' that works for non-numeric data (e.g. most common shoe colour).
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