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 Wendy’s or an order that is not accurate.

Step 1

Definition:

Two events are independent, if the probability that one event occurs not affect the other event occurring.

P (A or B) =P (A) + P (B) - P (A and B)

Step 2

Step 3

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