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সংখ্যার মাধ্যমে উপযুক্ত এককের দ্বারা অথবা পরিসংখ্যানে যেসব বৈশিষ্ট্যের মান সংখ্যায় গ্রহণ করা হয় তাদের চলক বলে। যেমন—ওজন, বয়স, উচ্চতা, উয়তা ও বৃষ্টিপাত ইত্যাদির সংখ্যাগত মান এক-একটি চলক।
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Answer ( 1 )
সংখ্যার মাধ্যমে উপযুক্ত এককের দ্বারা অথবা পরিসংখ্যানে যেসব বৈশিষ্ট্যের মান সংখ্যায় গ্রহণ করা হয় তাদের চলক বলে। যেমন—ওজন, বয়স, উচ্চতা, উয়তা ও বৃষ্টিপাত ইত্যাদির সংখ্যাগত মান এক-একটি চলক।