Question
Download Solution PDFश्रेणी x1, x2...xn का माध्य x̅ है। यदि xn को k से प्रतिस्थापित किया जाता है, तो नया माध्य क्या होगा?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFव्याख्या:
दिया गया है:
\(\overline x = \frac{x_1+x_2+x_3+......... x_n}{n}\)
⇒ \(x_1+x_2+X_3+......x_n= n\overline x \)
⇒ जब xn को k से प्रतिस्थापित किया जाता है तब माध्य
⇒ नया माध्य = \(\frac{x_1+x_2+x_3+......... x_{n-1}+k}{n}\)
= \(\frac{n\overline x -x_n+k}{n}\)
∴ विकल्प (d) सही है
Last updated on May 30, 2025
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