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What is the mean?\newline−5,−6,−7,−7,−4,−6,−7,−4,−8-5, -6, -7, -7, -4, -6, -7, -4, -8\newline__\_\_

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Q. What is the mean?\newline−5,−6,−7,−7,−4,−6,−7,−4,−8-5, -6, -7, -7, -4, -6, -7, -4, -8\newline__\_\_
  1. List data set: List the data set and understand what is being asked.\newlineThe data set given is: −5,−6,−7,−7,−4,−6,−7,−4,−8-5, -6, -7, -7, -4, -6, -7, -4, -8. We are asked to find the mean (average) of these numbers.
  2. Add numbers for sum: Add up all the numbers in the data set to find the sum. \newlineSum = (−5)+(−6)+(−7)+(−7)+(−4)+(−6)+(−7)+(−4)+(−8)(-5) + (-6) + (-7) + (-7) + (-4) + (-6) + (-7) + (-4) + (-8)\newlineSum = −54-54
  3. Count values: Count the number of values in the data set.\newlineThere are 99 numbers in the data set.
  4. Divide sum for mean: Divide the sum by the number of values to find the mean.\newlineMean = SumNumber of values\frac{\text{Sum}}{\text{Number of values}}\newlineMean = (–54)9\frac{(–54)}{9}\newlineMean = –6–6

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