A noise and vibration question. How to calculate this?

S.S.

2019-09-16 11:13 am

回答 (1)

david

2019-09-16 12:29 pm

✔ 最佳答案

Do a weighted average
[(85 X 2.5) + (88 X 2) + (50 X 1) + (91 X 2) + (95 X 0.5)] / 8
= 83.5

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