Calculating Math Quartiles - Is That Right?

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SUMMARY

The calculation of quartiles in an ordered data set is defined as follows: the lower quartile (Q1) is the 1/4(n+1)th term, the median (Q2) is the 1/2(n+1)th term, and the upper quartile (Q3) is the 3/4(n+1)th term. The interquartile range (IQ) is calculated as Q3 minus Q1, while the semi-interquartile range (SIQ) is half of the IQ. These formulas are accurate and widely accepted in statistical analysis.

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  • Understanding of ordered data sets
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  • Basic knowledge of quartiles and their significance
  • Ability to perform arithmetic operations
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  • Learn about the significance of interquartile ranges in statistics
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DrWarezz
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Just checking ...


In an ordered set of data:

  • The lower quartile, Q1 = 1/4(n+1)th term within the series;
  • The median, Q2 = 1/2(n+1)th term within the series;
  • The upper quartile, Q3 = 3/4(n+1)th term within the series;
  • The interquartile, IQ = Q3 - Q1
  • The semi-interquartile, SIQ = 1/2 * IQ

Is that right?
 
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