RANK AND STACK OBSERVED DATA

1. Arrange data in ascending values.

   Assumes: order of observation not important (unlike reliability where order or time to failure is important)

   X = {2,2,2,2,2,2,2,2, 3,3,3,3,3, 4,4,4,4, 5,5, 6}

2. Group ascending data in like intervals or cells

   X = {[2,2,2,2,2,2,2,2], [3,3,3,3,3], [4,4,4,4], [5,5], [6]}

3. Assign a random variable to each cell X _k (use sub k)

   X = {[X ₁ ], [X ₂ ], [X ₃ ], [X ₄ ], [X ₅ ]}

4. Count "frequency" of observations in each cell, f _k