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Statistics question

2025 · 7 Apr · Shift 1 · Q29
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  5. /2025 · 7 Apr · Shift 1 · Q29

Statistics question

2025 · 7 Apr · Shift 1 · Q29

JEE MainMathematicsStatisticsMCQ+4 / −1
The mean and standard deviation of 100 observations are 40 and 5.1 , respectively. By mistake one observation is taken as 50 instead of 40 . If the correct mean and the correct standard deviation are μ\muμ and σ\sigmaσ respectively, then 10(μ+σ)10(\mu+\sigma)10(μ+σ) is equal to
  1. A
    447
  2. B
    445
  3. C
    449
  4. D
    451
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