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Arithmetic Mean - Class X
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What is the value of mean for the following data:
| Marks | No. of Student |
|---|---|
| $5-14$ | $10$ |
| $15-24$ | $18$ |
| $25-34$ | $32$ |
| $35-44$ | $26$ |
| $45-54$ | $14$ |
| $55-64$ | $10$ |
AnswerClick to flip back
A
$33.68$
💡 Explanation:
To find the mean, use the formula (sum of fx) / N. The midpoints (x) are 9.5, 19.5, 29.5, 39.5, 49.5, 59.5. Summing fx gives 3368, and N is 100, resulting in 33.68.