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4. A set of data whose histogram is bell shaped has a mean of 55 and...

4. A set of data whose histogram is bell shaped has a mean of 55 and standard deviation of 2

Approximately what percent of the observation:

  1. are below 57
  2. are between 51 and 59
  3. are between 53 and 59
Math   Statistics-And-Probability   
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