anonymous
  • anonymous
A local car dealership advertises cars that get the following miles per gallon:15, 22, 36, 30, 38, 21 Find the variance. (Round your answer to the nearest hundreth.)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
first find out the average
anonymous
  • anonymous
162
anonymous
  • anonymous
@tana you are required to calculate the average first

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anonymous
  • anonymous
how you have calculated the average???
anonymous
  • anonymous
added
anonymous
  • anonymous
average is total / number
anonymous
  • anonymous
duhh i added them to get the "TOTAL NUMBER "
anonymous
  • anonymous
\[Average = {{15+22+36+30+38+21 }\over{6}}\]
anonymous
  • anonymous
so average is???
anonymous
  • anonymous
144.5
anonymous
  • anonymous
\[Average = {{15+22+36+30+38+21 }\over{6}}={{162}\over{6}}=27\]
anonymous
  • anonymous
tana do u know about variance
anonymous
  • anonymous
Miles/Gallon Deviation Deviation^2 15 -12 144 22 -5 25 36 9 81 30 3 9 38 11 121 21 -6 36 27=average variance= 69.33333333
anonymous
  • anonymous
no
anonymous
  • anonymous
is this your variance???
anonymous
  • anonymous
idk

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