The following table shows the MyersBriggs personality prefer

The following table shows the Myers-Briggs personality preferences for a random sample of 409 people in the listed professions. Use the chi-square test to determine if the listed occupations and personality preferences are independent at the 0.1 level of significance. What are the degrees of freedom?

(rows -1)(columns-1) = (3-1)(2-1) = 2

row total and column total are not counted