Exhibit 2-1.An auto parts chain asked customers to complete a survey rating the chain's customer service as average,above average,or below average.The following shows the results from the survey: Refer to Exhibit 2-1.The proportion of customers that felt the customer service was average is closest to ______.
A)0.20
B)0.33
C)0.46
D)0.53

Question

Exhibit 2-1.An auto parts chain asked customers to complete a survey rating the chain's customer service as average,above average,or below average.The following shows the results from the survey:  Refer to Exhibit 2-1.The proportion of customers that felt the customer service was average is closest to ______.
A)0.20 
B)0.33 
C)0.46 
D)0.53

Quizplus · Accepted Answer

The proportion of customers that felt the customer service was average is the percentage of responses that selected "average". From the table, we see that there were a total of 18 responses, and 6 of them selected "average". Therefore, the proportion is 6/18 = 0.33 or approximately 33%.