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 Drive-thru Restaurant Order Accurate Order Not Accurate 33 320 265 233 150 10 51 36 If two orders are selected, find the probability that they are both accurate. Complete parts (a) and (b) below a. Assume that the selections are made with replacement. Are the events independent? The probability isThe events independent. (Round to three decimal places as needed.) b. Assume that the selections are made without replacement. Are the events independent? The probability is The events independent. (Round to three decimal places as needed.)

Explanation / Answer

Total order = 320 + 265 + 233 + 150 + 33 + 51 + 36 + 10 = 1098

a) Probability = 968/1098 * 968/1098 = 0.7772

The events are independent.

b) Probability = 968C2/1098C2 = 0.7771

The events are not independent.

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