Question: How do I use this formula. Can someone provide a sample chart and how this formula can be applied to it? (especially for fw (frequency

How do I use this formula. Can someone provide a sample chart and how this formula can be applied to it? (especially for fw (frequency in the interval).

If + X-Irl (fwv) PR for X = (100) Formula 2-11 N where PR = percentile rank X = score fb = sum of frequencies below the interval containing the score represent- ing the desired percentile rank Irl = lower real limit = interval size fw = frequency within this interval

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