One drive-through car wash facility offers three different types of washes: basic, deluxe, and supreme. The manager of the car wash facility tallies customer selections over three days: Type of Car Wash Basic Deluxe Supreme Total Day Friday 15 43 19 77 Saturday 27 52 22 101 Sunday 23 45 19 87 Total 65 140 60 265 What proportion of customers selected the deluxe car wash? Round the answer to four decimal places.
The proportion is the number of customers who selected deluxe divided by the total number of customers: 140 ÷ 265 ≈ 0.5283. Therefore, the answer is 0.5283, choice C.
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