alleryশ্রেণি সীমানা 0-10, 10-20, 20-30-এর পরিসংখ্যা হলো 5, 12 এবং 8। সংখ্যাগুরু শ্রেণিটি কোনটি?
A0-10
B10-20
C20-30
Dকোনোটিই নয়
Answer & Solution
Correct answer: B. 10-20
সর্বাধিক পরিসংখ্যা 12 বিশিষ্ট শ্রেণিটি হলো 10-20 শ্রেণি।
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