The manager of a local company is analyzing the quality of service provided to t

Question

The manager of a local company is analyzing the quality of service provided to their customers. As part of their effort, the graph below was prepared based on the data reported for the previous month and shows the length of time customers had to wait on the line before receiving service. 450T- 400 350 t 300 -- 250 200 150. 100 50 01 2 347 Waiting Time (minutes) 0 123 4 57 810 The number of customers that had to wait between one and three minutes was Moving to another question will save his response. Question S of 10

Explanation / Answer

So we can see in the figure that the graph shows the cummulative time custumers have to wait

Number of customers that have to wait upto 3 minutes = 250

Number of customers that have to wait upto 1 minutes = 100

Number of customers that have to wait between 1 and 3 minutes = 250 - 100 = 150

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