Answer to Question #325950 in Statistics and Probability for Claire

Question

Determine whether the events are mutually exclusive or not mutually exclusive then find the probability. Express your answer in fraction.

1. A pet store has the following animals: 6 puppies, 9 kittens, 4 gerbils, and 7 parakeets. If a pet is chosen at random, what is the probability of choosing a puppy or a parakeet?

2. In a box having 4 bulbs, the probability of having no defected bulb is 0.5 and the probability of having no bulb defected 0.4. Find the probability of having one defected bulb or zero defected bulb.

3. In selecting a number at random from integers 1 to 20 , what is the probability of getting an even number or a number divisible by 3.