Question
Download Solution PDFপাচঁটি ধারাবাহিক জোড় সংখ্যার গড় হল 16, সংখ্যা গুলির ভেদমান (ভেরিএন্স) কত হবে?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFপ্রদত্ত :
পাচঁটি ধারাবাহিক জোড় সংখ্যার গড় = 16
অনুসৃত সূত্র :
V =ভেদমান
∑ = সমষ্টি
x = পর্যবেক্ষণ
n = পর্যবেক্ষণের সংখ্যা
a = সংখ্যা গুলির 1ম পদ (টার্ম)
d = সাধারণ অন্তর
গণনা :
⇒ 2a + (5 – 1)2 = 32
⇒ 2a + 4 × 2 = 32
⇒ 2a = 32 – 8
⇒ 2a = 24
⇒ a = 12
1ম পদ = 12
অন্যান্য পদগুলি হল 14, 16, 18, 20
⇒
⇒
⇒ 8
⇒ V = 8
∴ সংখ্যাগুলির ভেদমান হল 8
Last updated on Jul 4, 2025
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