The interval (μ - 3ð, μ + 3ð) covers:

CA Foundation · Quantitative Aptitude · MTP · April 2025
The interval (μ - 3ð, μ + 3ð) covers:
(A) A. 95% area of normal distribution
(B) B. 96% area of normal distribution
(C) C. 99% area of normal distribution
(D) D. All but 0.27% area of a normal distribution

Suggested Answer and Working Notes:

Correct Answer: Option (D)

D. All but 0.27% area of a normal distribution

Topics: Part-C: Statistics

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