Use the data in the following table, which lists drive-thru order accuracy at po

Question

Use the data in the following table, which lists drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table. Order Accurate Order Not Accurate32 59 328 279 246141 3616 If one order is selected, find the probability of getting an order from Restaurant A or an order that is accurate. Are the events of selecting an order from Restaurant A and selecting an accurate order disjoint events? The probability of getting an order from Restaurant A or an order that is accurate is (Round to three decimal places as needed.)

Explanation / Answer

Total number of orders = 1137

Number of orders from restaurant A =360

Number of accurate orders = 994

Number of orders from restaurant A and accurate = 328

Thus, number of orders from restaurant A or an order that is accurate = 360 + 994 - 328 = 1026

So, the required probability = 1026/1137 = 0.902

A B C D Total Order accurate 328 279 246 141 994 Order not accurate 32 59 36 16 143 Total 360 338 282 157 1137

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