 |
Greek letter sigma, denoting sum of.  is shorthand for  |
| | x | |
absolute value of x |
 |
probability of a Type I error; or level of hypothesis test, usually 0.05 |
 |
probability of a Type II error |
 |
value from the Chi-squared distribution, see Chi-squared table |
| CI |
confidence interval |
| CR |
coefficient of repeatability |
| DF |
degrees of freedom |
| F |
value from the F-distribution, see F-Distribution critical values table |
| K |
kappa |
| n or N |
sample size |
| P |
probability of hypothesis |
| r |
Pearson correlation coefficient |
| rs |
Spearman rank correlation coefficient |
| R |
coefficient of determination |
| RSD |
relative standard deviation |
| s |
standard deviation |
| s2 |
variance |
| SD |
standard deviation |
| SEM |
standard error of the mean |
| t |
value from the t-distribution, see t-distribution table |
| z |
value from the Normal distribution, see Normal distribution table |
