Is there a reasonably convenient way to calculate or estimate 20th and 80th percentiles if I know 10th, 90th, and 50th?
For example, given 10th = 1.88, 90th = 4.00, and 50th = 3.00
20th = ?
80th = ?
For example, given 10th = 1.88, 90th = 4.00, and 50th = 3.00
20th = ?
80th = ?
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