Table of Contents
The TRIMMEAN function in Excel is a statistical tool that calculates the mean of a range of data, excluding a specified percentage of the highest and lowest values. This function is useful for removing outliers and calculating a more accurate average. To use the TRIMMEAN function, select a range of data, specify the percentage of data to be excluded, and enter the function “=TRIMMEAN(range, percentage)” in a cell. This will return the trimmed mean of the data. The TRIMMEAN function can be particularly helpful in data analysis and decision making by providing a more representative average value.
This article describes the formula syntax and usage of the TRIMMEAN function in Microsoft Excel.
Description
Returns the mean of the interior of a data set. TRIMMEAN calculates the mean taken by excluding a percentage of data points from the top and bottom tails of a data set. You can use this function when you wish to exclude outlying data from your analysis.
Syntax
TRIMMEAN(array, percent)
The TRIMMEAN function syntax has the following arguments:
Array Required. The array or range of values to trim and average.
Percent Required. The fractional number of data points to exclude from the calculation. For example, if percent = 0.2, 4 points are trimmed from a data set of 20 points (20 x 0.2): 2 from the top and 2 from the bottom of the set.
Remarks
If percent < 0 or percent > 1, TRIMMEAN returns the #NUM! error value.
TRIMMEAN rounds the number of excluded data points down to the nearest multiple of 2. If percent = 0.1, 10 percent of 30 data points equals 3 points. For symmetry, TRIMMEAN excludes a single value from the top and bottom of the data set.
Cite this article
stats writer (2024). How do I use the TRIMMEAN function in Excel?. PSYCHOLOGICAL SCALES. Retrieved from https://scales.arabpsychology.com/stats/how-do-i-use-the-trimmean-function-in-excel/
stats writer. "How do I use the TRIMMEAN function in Excel?." PSYCHOLOGICAL SCALES, 1 Jul. 2024, https://scales.arabpsychology.com/stats/how-do-i-use-the-trimmean-function-in-excel/.
stats writer. "How do I use the TRIMMEAN function in Excel?." PSYCHOLOGICAL SCALES, 2024. https://scales.arabpsychology.com/stats/how-do-i-use-the-trimmean-function-in-excel/.
stats writer (2024) 'How do I use the TRIMMEAN function in Excel?', PSYCHOLOGICAL SCALES. Available at: https://scales.arabpsychology.com/stats/how-do-i-use-the-trimmean-function-in-excel/.
[1] stats writer, "How do I use the TRIMMEAN function in Excel?," PSYCHOLOGICAL SCALES, vol. X, no. Y, ص Z-Z, July, 2024.
stats writer. How do I use the TRIMMEAN function in Excel?. PSYCHOLOGICAL SCALES. 2024;vol(issue):pages.