garydesir1
garydesir1
01-06-2016
Mathematics
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Please show your work
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Аноним
Аноним
01-06-2016
Mean = (Sum of values)/(Number of values)
[tex]Mean\\ \\ =\frac { 55+62+61+54+68+72+59+61+70 }{ 9 } \\ \\ =\frac { 562 }{ 9 } \\ \\ =62.4\quad mph\quad (1\quad d.p)\\ \\ [/tex]
Range = Highest Value - Lowest Value
[tex]Range\\ \\ =72-54\\ \\ =18\\ \\ [/tex]
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