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Mathematics 10 Online
OpenStudy (rational):

tricky stats question, help

OpenStudy (rational):

OpenStudy (rational):

please help !

OpenStudy (rational):

@amistre64

OpenStudy (amistre64):

what does a standard deviation tell us?

OpenStudy (amistre64):

\[z=\frac{x-\mu}{\sigma}\] \[z\sigma=x-\mu\] \[0=x-\mu~:~for~all~x\]

OpenStudy (rational):

that means all observations lie at center ?

OpenStudy (rational):

|dw:1395675601588:dw|

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