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Don't be average!

One of the most frequently used descriptive statistics is the mean, which is often just referred to as just the average. It is a useful statistic to compute when you are exploring a new dataset, such as this one, which lists Barack Obama's approval ratings in 2016.

Your job in this exercise is to manually compute the mean approval rating.

この演習はコースの一部です

Google Sheets ではじめる統計学

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演習の手順

  • In cell D2, calculate the SUM() of Barack Obama's approval rating for 2016.
  • COUNT() the number of observations in the data range A1:A13.
  • Divide the sum by the count to calculate the monthly mean average.

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