Use the frequency table that you constructed in question number 3 to find the percentile rank. What is the percentile rank of Age of 45. Round up to two numbers after the decimal point in percentile rank.

Darryl English 2022-07-22 Answered
Use the frequency table that you constructed in question number 3 to find the percentile rank.
What is the percentile rank of Age of 45. Round up to two numbers after the decimal point in percentile rank.
Age Frequency = f relative Frequency = rf Cumulative frequency =>cf 74 93 5 ( 5 / 27 ) = 0.185 27 54 73 7 ( 7 / 27 ) = 0.259 22 34 53 5 ( 5 / 27 ) = 0.185 15 14 33 10 ( 10 / 27 ) = 0.370 10 Total 27
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Answers (1)

dominicsheq8
Answered 2022-07-23 Author has 15 answers
Formula for percentile rank:
Percentile Rank = ( Cumulative frequency of the previous class of value + 1 2  frequency of the corresponding class Total frequency ) 100
In the given situation,
The given value is 45, which is lies in the age group 34-53.
The frequency of the class 34-53 is 5.
The cumulative frequency of the previous class (14-33) is 10.
And N=27
Therefore, the percentile rank for 45 is,
Percentie Rank = ( 10 + ( 1 2 5 ) 27 ) 100 = 46.30
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