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When the average hides the problem

Average delivery time is 3 days, which meets the target, but complaints about late delivery keep rising. What should you analyse next?

A.The distribution: median, 90th percentile and breakdown by region, product or courier, to see if a group waits much longerB.Nothing; the average meets the targetC.Only the fastest deliveriesD.The total number of deliveries this year

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When the average hides the problem

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