[Closed] if you are at the 75th percentile, are you part of the upper quartile group?

only on weekends

No to the first question, yes to the second

see, that's what I thought.
Q1 = 0-25%
Q2 = 26-50%
Q3 = 51-75%
Q4 = 76-100%
This could be a painful message to give (and to receive) for the person at number 25...

not as bad as decimating them i hope

Q1 = 0-25%
Q2 = 26-50%
Q3 = 51-75%
Q4 = 76-100%

You've got 101 points on your scale. If its only discrete numbers it should be
Q1 = 1-25. Otherwise your first quartile is 1 larger than the others.

If its non discrete (i.e not only whole numbers) you're not allowing for the values between 25% and 26%, 50% and 51% or 75% and 76%.

Colin

thanks Colin, it's discrete. I'm only concerned with those individuals at the quartile boundaries and haven't been explicit about the ranges that have been used, but I see your point on the 0th percentile so will change it to 1st if I need to.