Q:

What does the standard deviation of the mean represent? For values that are normally distributed, it represents:

0

What does the standard deviation of the mean represent? For values that are

normally distributed, it represents:


  1. the value above and below the mean that includes 68 % of all data values
  2. the difference between the highest data value and the lowest data value
  3. the average of the difference between each data value and the mean value.
  4. the spread of the normal distribution.

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A: The term “standard” in standard deviation of a distribution of

measured values, means that it may be relied upon to encompass 68 % of all

measured values.

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