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leva [86]
3 years ago
9

HELP PLEASE!! Math question— Please explain,,,

Mathematics
1 answer:
kozerog [31]3 years ago
6 0

Mean: 8.61

Sample Standard Deviation: 0.55

I hope this is correct

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Mid-point formula : \frac{ x_{1} +x_{2}} {2}, \frac{y_{1}+y_{2}  }{2} \\\\x=\frac{7+(-1)}{2}         ,     y=  \frac{2+(-9)}{2} \\x= \frac{6}{2}              ,     y=  \frac{-7}{2} \\x=3                             ,    y= -3.5

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