- AAsha
- BRavi
- CBoth equal
- DCannot be decided
Step-by-Step Solution
Asha's sum = 80+75+90+65+85 = 395, mean = 79. Ravi's sum = 70+80+85+75+70 = 380, mean = 76. Asha's mean (79) is higher.
Answer: A) Asha
In a double bar graph showing marks of Asha and Ravi in 5 subjects, Asha scored 80, 75, 90, 65, 85 and Ravi scored 70, 80, 85, 75, 70. Who has the higher mean mark?
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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