**19.** The table below describes the smoking habits of a group of asthma suffers.

**Nonsmoker**

**Occasional smoker**

**Regular smoker**

**Heavy smoker**

**Men**

**374**

**36**

**86**

**36**

**Women**

**380**

**37**

**60**

**32**

**19A**. Given that an asthma sufferer is an occasional smoker, what is the probability that the person is a woman?

**19B.** Given that an asthma sufferer is a man, what is the probability that the person is a regular smoker?

**19C**. Given that an asthma sufferer is a regular smoker, what is the probability that the person is a nonsmoker?