5,337
edits
Probability: Difference between revisions
→T-distribution
| Line 151: | Line 151: | ||
===T-distribution=== | ===T-distribution=== | ||
* Ratio of normal and squared-root of Chi-sq distribution yields T-distribution. | * Ratio of standard normal and squared-root of Chi-sq distribution yields T-distribution. | ||
** If <math>Z \sim N(0,1)</math> and <math> V \sim \Chi^2(v)</math> then <math>\frac{Z}{\sqrt{V/v}} \sim t-dist(v)</math> | ** If <math>Z \sim N(0,1)</math> and <math> V \sim \Chi^2(v)</math> then <math>\frac{Z}{\sqrt{V/v}} \sim t-dist(v)</math> | ||