jeffreydaboy
jeffreydaboy jeffreydaboy
  • 03-04-2017
  • Mathematics
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I need help with 20 and 21

I need help with 20 and 21 class=

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lisee7 lisee7
  • 03-04-2017
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Need help cnnbc recently reported that the mean annual cost of auto insurance is 959 dollars. assume the standard deviation is 263 dollars, and the cost is norm