Lower and upper fence calculator

For calculation lower and upper fence enter numerical data separated with comma (or space, tab, semicolon or new line). For example: -5, -4, 7.5, 8.7, 3.4, 9.4, 0.8, 1.5, 2.6, 0.9, 0.6, 9.4, 8.4, 6.6 , 9.4


What is lower and upper fence?

The Lower fence is the "lower limit" and the Upper fence is the "upper limit" of data, and any data lying outside this defined bounds can be considered an outlier.

LF = Q1 - 1.5 * IQR
UF = Q3 + 1.5 * IQR

where Q1 and Q3 are the lower and upper quartile and IQR is the interquartile range.

How to enter data as frequency table?

Simple. First-type data elements (separated by spaces or commas etc) then type f: and further write frequency of each data item. Each element must have defined frequency that number of numbers before and after symbol f: must be equal. For example:

1.1 2.5 3.99
f: 5 10 15