Question

You are studying the color patterns of a species of iris that can be yellow, purple, or red. If you are performing a chi-squared test to compare the number of each you find in a field to the number you would expect to find based on the pollinators in the area, how many degrees of freedom would you have in your analysis

Answer 1

Number of degrees of freedom = 2

Explanation:

The degree of freedom in such type of chi-Square test depend on the number of phenotypes of the a particular species produced in a given cross.

Here the total phenotype number is three i.e yellow, purple, or red

Hence, the number of degrees of freedom = total number of phenotype - 1

Number of degrees of freedom = total number of phenotype - 1

Number of degrees of freedom = 3-1

Number of degrees of freedom = 2