Question

Asked Dec 21, 2019

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In Exercises 9–20, use the data in the following table, which lists drive-thru order accuracy at popular fast food chains (data from a QSR Drive-Thru Study). Assume that orders are randomly selected from those included in the table.

Fast Food Drive-Thru Accuracy If one order is selected, find the probability of getting an order from McDonald’s or an order that is accurate. Are the events of selecting an order from McDonald’s and selecting an accurate order disjoint events?

Step 1

**Computing the probability of getting an order from Restaurant A or an order that is accurate:**

Event *A* is defined as getting an order from restaurant *A* and *B* is defined as getting order that is accurate.

*Addition rule for two events:*

Step 2

The probability of any event *A* is given below:

Step 3

The probability of getting an order f...

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