According to the University of California at Berkeley Wellness Letter (February 1994, p. 1), only 40% of

Question:

According to the University of California at Berkeley Wellness Letter (February 1994, p. 1), only 40% of all surgical operations at that time required an overnight stay at a hospital. Rewrite this fact as a proportion, as a risk, and as the odds of an overnight stay. In each case, express the result as a full sentence.