Answer :
The degrees of freedom (df): For a chi-square test of independence, the df is (variety of variable 1 agencies − 1) * (number of variable 2 businesses − 1).
The degrees of freedom for the chi-rectangular have calculated the usage of the subsequent system: df = (r-1)(c-1) in which r is the wide variety of rows and c is the number of columns. If phenotype frequencies found chi-rectangular check statistic is greater than the essential value, the null speculation can be rejected.
To calculate degrees of freedom, subtract the variety of family members from the range of observations. For figuring out the degrees of freedom for a sample mean or average, you need to subtract one (1) from the number of observations.
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