agantisbz

2022-07-21

Baby Sofia is 6 months old. Her father takes her to her medical appointment at his neighbourhood family clinic. After Sofia is measured, her father is informed that she measures 68 cm, like 5 other babies who visit this clinic. In addition, he is told that 40 babies are bigger than her and that a total of 185 babies are being followed at the clinic. m What is Sofia's percentile rank at this clinic in relation to her height?

esbalatzaj

$\text{Percentile Rank}=\left[\left(M+\left(0.5×R\right)\right)/Y\right]×100$
Where,
M = Number of Ranks below x
R = Number of Ranks equals x
Y = Total Number of Ranks
Total babies Y = 185
Percentile rank to be calculated for Sofia who is at 41st rank.
X=41
There 5 other babies who have similar measurements to Sofia.
R = 6
Count the ranks that are less than 41 which will be considered M.
M = 40
$\text{Percentile Rank}=\frac{M+\left(0.5\cdot R\right)}{Y}×100\phantom{\rule{0ex}{0ex}}\text{Percentile Rank}=\frac{40+\left(0.5\cdot 6\right)}{185}×100\phantom{\rule{0ex}{0ex}}\text{Percentile Rank}=23.24\mathrm{%}$
Sofia's percentile rank is 23.24 %

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