Instructions: In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.
Input: Question: The degrees of freedom of the intragroup variance in a 1-way Anova comparing 4 groups of 10 individuals each are:
Options: <1> 38 <2> 39 <3> 3. <4> 40 <5> 36
Output:
5