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Essentials of Business Analytics 1st Edition by Jeffrey Camm,James Cochran,Michael Fry,Jeffrey Ohlmann ,David Anderson
النسخة 1الرقم المعياري الدولي: 978-1285187273Essentials of Business Analytics 1st Edition by Jeffrey Camm,James Cochran,Michael Fry,Jeffrey Ohlmann ,David Anderson
النسخة 1الرقم المعياري الدولي: 978-1285187273 تمرين 1
Consider a sample with data values of 27, 25, 20, 15, 30, 34, 28, and 25. Compute the 20th, 25th, 65th, and 75th percentiles.
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موثّق
Percentile is defined as that value of a variable at a point where the specific percentage of data sets is below that value.It is possible to find the percentiles of a given dataset by excel or manually. As the data set is smaller, manual approach is followed. Sort the given data in ascending order:
The formula to calculate m percentile of the dataset of length n :
To calculate 20 th percentile:
Thus, 20th percentile is the second value
in the sorted data.To calculate 25 th percentile:
Thus, 25 th percentile is
.
To calculate 65 th percentile:
Thus, 65 th percentile is
.
To calculate 75 th percentile:
Thus, 75 th percentile is
.
The formula to calculate m percentile of the dataset of length n : To calculate 20 th percentile: Thus, 20th percentile is the second value in the sorted data.To calculate 25 th percentile: Thus, 25 th percentile is .To calculate 65 th percentile:
Thus, 65 th percentile is .To calculate 75 th percentile:
Thus, 75 th percentile is .
Essentials of Business Analytics 1st Edition by Jeffrey Camm,James Cochran,Michael Fry,Jeffrey Ohlmann ,David Anderson
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