cubdy cubdy
  • 03-03-2017
  • Mathematics
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A day care program has an average daily expense of $75.00 the standard deviation is $15.00. The owner takes a sample of 64 bills. What is the probability the mean of his sample will be between $70.00 and $80.00?

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elizabethrodarte902
elizabethrodarte902 elizabethrodarte902
  • 03-03-2017
Add 75 and 15 then minus 64. Add 70 and 80 then add the answers
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