There's a question in my homework that is asking for the 40th percentile, does that mean 40%? (We're studying Standard Deviation/The Normal Model)

Question

There's a question in my homework that is asking for the 40th percentile, does that mean 40%?   (We're studying Standard Deviation/The Normal Model)

shinalcantara · Answer

can you state the whole problem?

doc.brown · Answer

If you fail this course, you may be in the 40th percentile.  That's everyone that got a 40% or lower.
Of course, if you fail this course you will definitely be in the 90th percentile.

masumanwar · Answer

Percentiles are those values which divides the total frequencies in hundred equal parts when the series is arranged in order of magnitude 
Pk=Lk + (nk/100 -Fk)/ fk*Wk Where Pk is kth percentile Lk lower boundary of the k th percentile class Fk cumulative frequency of the class fk frequency of the k the percentile class and Wk is the width of the class