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एक उपनगरी के 25 घरों के बिजली के बिल (रू...

एक उपनगरी के 25 घरों के बिजली के बिल (रूपये में) निम्नांकित हैं -
50, 44, 10, 18, 8, 5, 30, 30, 22, 56, 24, 15, 12, 42,
27, 25, 45, 20, 24, 14, 16, 22, 25, 47, 36.
वर्ग-अंतराल 0-10 (10 छोड़कर) इत्यादि लेकर बारंबारता सारणी बनाएँ |

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