算平均數(shù)取得中點不是第二個數(shù)嗎，為什么答案是從第三個數(shù)開始的呢？而且我算出的平均值與答案不相符。求老師解答

usersuqhsn 發(fā)布于：2020-03-06 11:43:42 瀏覽308次   ACCA FMA/MA
A company is preparing its forecast sales information for the end of the current year. The actual sales information for the first nine months of the current year (20X1) is below: What is the expected sales volume including seasonal variation for December 20X1?
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名師解答

Ava_Tang 發(fā)布于2020-03-06 17:32:05

加載中...