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替朋友问关于statistics的东西。。
For 5 data values, the deviations of the first 4 values from the population mean are -7, 2, -3 and 5
(i)What is the deviation of the fifth value from the mean?
(ii)Find the population standard deviation and the range of the 5 values.
小弟的statistics知识都换回给老师了。。
有working steps比较好。。
希望各位大大可以帮帮忙。。 |
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