- A14 mm
- B20 mm
- C16 mm
- D96 mm
Step-by-Step Solution
Read the bars: mm. Mean mm. (14 mm is the median and 20 mm the range.)
Answer: C) 16 mm
The bar graph shows the rainfall at Cherrapunji on six days of a week. What was the mean daily rainfall for these six days?
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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