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Math Quartiles

  1. May 2, 2006 #1
    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?
  2. jcsd
  3. May 3, 2006 #2
    Can I delete this thread ??
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