Yes, and I also describe that in my "EDIT2" section, namely that if a value is ___ in ___ the n'th percentile, it is equal to or below the value of the n'th percentile. Which, for your example, given that it uses ___ in ___ , not ___ at ___ , would mean that the given boy is not especially tall nor has an especially high weight.
The term percentile and the related term percentile rank are often used in the reporting of scores from norm-referenced tests. For example, if a score is at the 86th percentile, where 86 is the percentile rank, it is equal to the value below which 86% of the observations may be found (carefully contrast with in the 86th percentile, which means the score is at or below the value below which 86% of the observations may be found—every score is in the 100th percentile).
Though Wikipedia is of course often extremely wrong and/or intentionally extremely dishonest and manipulative.
Yes, and I also describe that in my "EDIT2" section, namely that if a value is ___ in ___ the n'th percentile, it is equal to or below the value of the n'th percentile. Which, for your example, given that it uses ___ in ___ , not ___ at ___ , would mean that the given boy is not especially tall nor has an especially high weight.
Could you describe in which way I am wrong, and/or give any sources reg. it?
The source I am using myself is this page https://en.wikipedia.org/wiki/Percentile , with for instance:
Though Wikipedia is of course often extremely wrong and/or intentionally extremely dishonest and manipulative.