Madhyamik Question Paper Solution of Year 2023 Question No: 15(i)
নীচের পরিসংখ্যা বিভাজনের যৌগিক গড় 50 এবং মোট পরিসংখ্যা 120 হলে \(f_1\) ও \(f_2\) এর মান নির্ণয় করো :
| শ্রেণী সীমা | 0-20 | 20-40 | 40-60 | 60-80 | 80-100 |
| পরিসংখ্যা | 17 | \(f_1\) | 32 | \(f_2\) | 19 |
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