Basic Statistics - Measures of Central Tendency
Median For Grouped Data
Measures of central tendency help you find the middle, or the average, of a data set. The 3 most common measures of central tendency are the mean, median and mode. The mode is the most frequent value. The median is the middle number in an ordered data set.
This formula is used to find the median in a group data which is located in the median class. Median, m = L + [ (N/2 - F) / f ]C L means lower boundary of the median class N means sum of frequencies F means cumulative frequency before the median class.
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24 авг 2024