The parametric methods [ 13 ] are based on the idea of transforming the data set to an approximate normal distribution by raising it to a real power.

In physics, if you observe a gas at a fixed temperature and pressure in a uniform gravitational field, the heights of the various molecules also follow an approximate exponential distribution.

T was the original statistic proposed by James Durbin, which would have an approximate null distribution of χ (that is, chi-squared with t 1 degrees of freedom).

An approximate distribution of languages spoken in the country is shown in the line chart below:

The approximate distribution of men throughout the camps was as follows: Kozelsk, 5,000; Ostashkov, 6,570; and Starobelsk, 4,000.

An approximate distribution of the ethnic groups is shown in the chart below:

Then, under the null hypothesis that M is the true model, the difference between the deviances for the two models follows an approximate chi-squared distribution with k-degrees of freedom.

Log-linear analysis uses a likelihood ratio statistic : that has an approximate chi-square distribution when the sample size is large:

In 2012-2013 Skyline has over 2,000 students with an approximate demographic distribution of:

Compute statistics which mimick the statistic and which have an approximate distribution with estimated degrees of freedom (df).