Question

Drinky Drinkpop wants to look at the drinking and eating preferences of people in an attempt to create some good combinations of product sales. He looks at three drinks: Coke, Dr. Pepper, and Sprite. He looks at 2 types of snacks: Pretzels and Potato Chips. He finds the probability of each of these as follows:

P(Coke) = 0.40                                                P(Coke & Potato Chips) = 0.30

P(Dr. Pepper) = 0.35                                       P(Coke & Pretzels) = 0.10

P(Sprite) = 0.25                                              

P(Pretzels) = 0.45

P(Potato Chips) = 0.55

Calculate the following probability:

P(Coke or Dr. Pepper)

Answer 1

P(coke or Dr pepper) = P(coke) + P(Dr pepper) - P(coke and Dr pepper)

                                   = 0.4 + 0.35 - 0

                                   = 0.75 (ans)