2. If the probability of rain tomorrow is 65%, what is the probability that it will not rain tomorrow?

3. A survey at a school asked students if they were ill with a cold or the flu during the last month. The results were as follows. None of the students had both a cold and the flu.

Cold Flu Healthy

Females 32 18 47

Males 25 19 38

Use these results to estimate the probability that.

a) a randomly selected student had a cold in the last month

b) a randomly selected female student was healthy last month