A bag contains these granola bars: 12 apple, 14 peanut butter, 18 raisin, and 10 oatmeal. You pick one bar at random. Find the probability of picking: a) a peanut butter granola bar b) an apple granola bar

You have 54 bars in total, and 14 peanut butter bars, so the probability of choosing a peanut butter bar is 14/54 or just 7/27.

Use the same approach for part b).