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Find the mean of the following data:Classes 0-100 100-200 200-300 300-400 400-500

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Find the mean of the following data:

Classes 0-100 100-200 200-300 300-400 400-500
Frequency 6 9 15 12 8
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Here, the xi’s are large. Now, we apply the step deviation method with a = 250 and h = 100

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