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MHT CET Mathematics question

MathematicsStatisticsMHT CET

Find the variance of the following data

| Class interval | 4 - 8 | 8 - 12 | 12 - 16 | 16 - 20 | |---|---|---|---|---| | Frequency | 3 | 6 | 4 | 7 |

Answer: (C)

Solution

Mid values are with , so . \dfrac${Σ

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Question ID VK-027581