Chi-Squared tests for categorical data

Please help me solve this problem.

DEPARTMENT OF PUBLIC SAFETY (DPS) EXPERTS DESIGNED A STUDY FOCUSED ON INDEPENDENCE OF TWO CATEGORICAL VARIABLES: RISK ASSESSMENT ()0 AND DRIVER'S AGE (Y). RESULTS ARE GOING TO BE SUMMARIZED IN THE TABLE SKETCHED BELOW. NO CALCULATION REQUIRED! AGE GROUP (Y) UNDER 20 20 TO 40 4 5 RISK ASSESSMENT (X) 1 ALMOST NO RISK 2 LOW 3 MEDIUM 4 MEDIUM TO HIGH 5 HIGH A. HOW MANY DEGREES OF FREEDOM WILL YOU SET FOR THE TEST STATISTIC? NUMBER OF DEGREES 0F FREEDOM =