The table lists the smoking habits of a group of college students. Sex Non-smoker Regular Smoker Heavy Smoker Total Male 176 47 31 254 Female 196 31 19 246 Total 372 78 50 500 If a student is chosen at random, find 1- The probability of getting a male. 2- The probability of getting a female given that she was a regular smoker. 3- The probability of getting someone who is a male or a non-smoker.

The table lists the smoking habits of a group of college students.

 

Sex	Non-smoker	Regular Smoker	Heavy Smoker	Total
Male	176	47	31	254
Female	196	31	19	246
Total	372	78	50	500

 

If a student is chosen at random, find

 

• The probability of getting a male.
• The probability of getting a female given that she was a regular smoker.
• The probability of getting someone who is a male or a non-smoker.