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	323	276	248	138
Order Not Accurate	38	53	40	16

If three different orders are selected, find the probability that they are all from restaurant D. 

The probability is _______ (Round to four decimal places as needed.) 

Answer 1

Total number of orders = 323 + 276 + 248 + 138 + 38 + 53 + 40+ 16 = 1132

number of orders from restaurant D = 138 + 16 = 154

If three different orders are selected,

The probability that they are all from restaurant D