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

Beginner2022-07-22Added 15 answers

$\text{Percentile Rank}=[(M+(0.5\times R))/Y]\times 100$

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

$\text{Percentile Rank}=\frac{M+(0.5\cdot R)}{Y}\times 100\phantom{\rule{0ex}{0ex}}\text{Percentile Rank}=\frac{40+(0.5\cdot 6)}{185}\times 100\phantom{\rule{0ex}{0ex}}\text{Percentile Rank}=23.24\mathrm{\%}$

Sofia's percentile rank is 23.24 %

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

$\text{Percentile Rank}=\frac{M+(0.5\cdot R)}{Y}\times 100\phantom{\rule{0ex}{0ex}}\text{Percentile Rank}=\frac{40+(0.5\cdot 6)}{185}\times 100\phantom{\rule{0ex}{0ex}}\text{Percentile Rank}=23.24\mathrm{\%}$

Sofia's percentile rank is 23.24 %

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