alleryএটা ২০ টা বল থকা পাত্ৰৰ পৰা উলিওৱা চাৰিটা বলৰ ভিতৰত তিনিটা ক’লা। তাত ঠিক ১৫ টা বল ক’লা হয়নে?
Aহয়, বিশুদ্ধ নিগমনৰ দ্বাৰা
Bহয়, নমুনাকৰণ নিশ্চিত
Cনহয়, এইটো এটা আনুমানিক হিচাপ
Dহয়, অনুপাতটো সঠিক
Answer & Solution
Correct answer: C. নহয়, এইটো এটা আনুমানিক হিচাপ
নমুনাৰ অনুপাতটোৱে ১৫ টা ক’লা বলৰ ইংগিত দিয়ে, কিন্তু ক’লা বলৰ আন বহুতো সংখ্যা সম্ভৱ হৈ ৰয়।
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