Seventy-five students participated in a survey at a local college and the following data were collected: there were 27 students taking accounting, 26 taking psychology and 41 taking statistics. Twelve

Seventy-five students participated in a survey at a local college and the following data were collected: there were 27 students taking accounting, 26 taking psychology and 41 taking statistics. Twelve students were taking accounting and psychology, 13 students were taking accounting and statistics, and 17 were taking psychology and statistics. Four students were taking all three courses.

How many students were taking only psychology?

How many students in the group were not taking any of the three subjects?

How many students were taking accounting and statistics, but not psychology?

How many students were taking just one of these subjects?