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Your company takes orders over the phone. The company's average call time is 4.6 minutes. The
graph below shows 4 calls and the difference between the call time and the company's average call
time. For these 4 calls, what is the mean difference between the call times and the company's
average call time, rounded to the nearest 0.1 minute?
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(Note: A negative difference indicates the call is shorter than the average.)
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Difference between Call Time and
Company Average Call Time
(Negative values indicate calls shorter
than company average.
Call 3
Minutes
0.68
Call 4
Call 1
-2.32