Use the data in the following table, which lists drive-thru order accuracy at po
ID: 3073345 • Letter: U
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.
Drive-thru Restaurant
A
B
C
D
Order Accurate
315315
267267
234234
147147
Order Not Accurate
3434
5656
3535
1616
If one order is selected, find the probability of getting an order that is not accurate.
The probability of getting an order that is not accurate is_______.
(Round to three decimal places as needed.)
Drive-thru Restaurant
A
B
C
D
Order Accurate
315315
267267
234234
147147
Order Not Accurate
3434
5656
3535
1616
Explanation / Answer
Solution :
A B C D Total
Order Accurate 315 267 234 147 963
Ordet Not Accurate 34 56 35 16 141
Total 349 323 269 163 1104
The probability of getting an order that is not accurate is = 141 / 1104 = 0.128
Probability = 0.128
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