The symbol for the probability of a Type II error is <math>\beta</math> (beta). The power of a statistical test is defined as <math>1 - \beta</math>.
See also Type I error.
... of 13.1 km² (5.1 mi²). 11.9 km² (4.6 mi²) of it is land and 1.2 km² (0.4 mi²) of it is water. The total area is 8.91% water. ...