Vehicles passing over a bridge have two options for paying their bridge toll: paying with a live cashier or using a Speed Pass device affixed to the dashboard. Data on a busy day for cars and trucks passing over the bridge are shown here. Payment Method Live Cashier Speed Pass Total Vehicle Type Car 35 67 102 Truck 18 47 65 Total 53 114 167 What proportion of vehicles crossing the bridge are trucks and use Speed Pass? Round the answer to four decimal places.
The number of vehicles that are both trucks and use Speed Pass is 47. The total number of vehicles crossing the bridge is 167, so the proportion is 47 ÷ 167 ≈ 0.2814 when rounded to four decimal places. Therefore, the correct choice is 0.2814.
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