Fifty Minor Offenders, Arrested for Shoplifting, Were Used as Subjects

Fifty minor offenders, arrested for shoplifting, were used as subjects in a research project. One half were placed on probation and the other half were given a special shoplifter group counseling program. The results were as follows for those on probation: 20 re arrested, 5 no offenses. For the group counseling subjects, 10 were re arrested and 15 had no offenses. Prepare a contingency table for this data, followed by a percentage table. Finally, compute a percentage difference between the two conditions.What does the percentage difference say about the relationship between the two variables