Reference no: EM132399741
The first five questions (1 to 5) refer to the following:
Suppose we have the following facts about a fast food restaurant:
- 56% of customers buy a hamburger
- 44% of customers buy french fries
- 71% of customers buy a hamburger or a Coke
- 16% of customers buy french fries and a Coke
- 4% of customers buy a hamburger and french fries
- 15% of customers buy a hamburger and a Coke
- 3% of customers buy all three items
We will randomly select one customer. Let H be the event that the customer buys a hamburger, let F be the event that the customer buys french fries, and let C be the event that the customer buys a Coke.
Probabilities are numbers between 0 and 1, so your answers to the below questions should be decimals, not percentages.
Question 1
What is the probability that the selected customer buys a hamburger or french fries?
Question 2
What is the probability that the selected customer buys a Coke?
Question 3
What is the probability that the selected customer buys none of the three items?
Question 4
True or False: H and F are independent of each other
Question 5
True or False: Since 56% + 44% = 100%, H and F are exhaustive of the sample space.