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- what was the 2nd and 3rd standardization

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08-09-2016 09:49 AM

- I have no idea about this question. Can anybody help to answer
- thanks

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Posted in reply to wenling

08-09-2016 09:59 AM

I have no idea about your question, or that question? Any kind of context?

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08-09-2016 10:35 AM

this is a sas tech questions, maybe related to normal distribution

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Posted in reply to wenling

08-09-2016 11:06 AM

Hi,

If a variable is normaly distributed then we expect

68% of the observations fall within mean+/-1.standard deviation

95% of the observations fall within mean+/-2.standard deviation

99% of the observations fall within mean+/-3.standard deviation

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Posted in reply to wenling

08-09-2016 11:56 AM

Could I ask then in future that questions be elaborated on providing where possible, examples of what is needed. If indeed this is to do with normal distribution then the appropriate sub forum would be the statistics section, this is posted in Base SAS Programming with no context.

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08-09-2016 12:54 PM

@RW9, I didn't understand the question either. But I wouldn't be a member of this forum if there had been an entry exam or stringent moderation when I joined.

PG