Z Score Calc ಅನ್ನು ಹೇಗೆ ಲೆಕ್ಕ ಹಾಕುವುದು

Z Score Calc ಎಂದರೇನು?

A z-score (standard score) expresses a value's distance from the population mean in standard deviation units. z = (x − μ) / σ. Positive z = above average; negative z = below average.

ಹಂತ-ಹಂತದ ಮಾರ್ಗದರ್ಶಿ

1. 1z = (x − μ) / σ
2. 2Percentile from z-score: use standard normal CDF
3. 3z=1.96 → 97.5th percentile
4. 4Enables comparison across different measurement scales

Worked Examples