use the data in the following table, which lists drive - thru order accuracy at popular fast food chains…

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.\n\ndrive - thru restaurant\n| | a | b | c | d |\n|--|--|--|--|--|\n| order accurate | 317 | 272 | 233 | 131 |\n| order not accurate | 39 | 60 | 29 | 19 |\n\nif an order is selected, find the probability of getting food that is not from restaurant a.\n\nthe probability of getting food that is not from restaurant a is (square) (round to three decimal places as needed.)
Answer
Explanation:
Step1: Calculate total number of orders
Total orders = $(317 + 76)+(272+60)+(233 + 79)+(131+19)$ $=393+332+312+150$ $=1187$
Step2: Calculate number of orders not from Restaurant A
Orders not from A = $(272 + 60)+(233+79)+(131 + 19)$ $=332+312+150$ $=794$
Step3: Calculate the probability
Probability = $\frac{\text{Number of orders not from A}}{\text{Total number of orders}}$ $=\frac{794}{1187}\approx 0.67$
Answer:
$0.67$