Tom works with community groups to organize volunteer opportunities for students at his college. He suspects some faculties are overrepresented with regards to the number of volunteers they yield. To discover whether some faculties yield more volunteers than others, Tom created a contingency table. Using observed values in the table, please answer the following questions and help Tom determine whether or not he has statistical evidence that warrants rejecting the null hypothesis that the faculties at his college yield equal numbers of volunteers.

Education	Social science	Mathematics
23	40	16

1. Calculate Chi Square and show all expected frequencies