A check of dorm rooms on a large college campus revealed that 22.5% had refrigerators, 35% had TVs, and 10% had both a TV and a refrigerator. […

A check of dorm rooms on a large college campus revealed that 22.5% had refrigerators, 35% had TVs, and 10% had both a TV and a refrigerator.

[Answer all questions below to 3 decomal places. The answers must be given as a fraction, not percentage. For instance, if the answer is 20.7% , it must be typed as 0.207.]