- A9 °C
- B3 °C
- C6 °C
- D11 °C
Step-by-Step Solution
Highest (Thursday), lowest (Saturday). Range . Ignoring the minus sign gives the wrong answer 3.
Answer: A) 9 °C
The line graph shows the minimum temperature in Shimla on seven days of a January week. What is the range of these temperatures?
Class 7Data HandlingData Handling
Key idea: Mean — the 'fair share'
The **mean** is what each person would get if you redistributed everything evenly. Sum the values, divide by the count.
Example: marks 8, 6, 7, 9, 10. Sum = 40. Count = 5. Mean = 40 ÷ 5 = 8.
Mean is the most common 'average' but it can be pulled up or down by extreme values (one very high or very low number).
Example: marks 8, 6, 7, 9, 10. Sum = 40. Count = 5. Mean = 40 ÷ 5 = 8.
Mean is the most common 'average' but it can be pulled up or down by extreme values (one very high or very low number).
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