Order the observations.
Find the values of the observation that is a quarter of the way and three quarters of the way along the list of these ordered values. If necessary, interpolate between the values.
The difference between the two values is the inter-quartile range and half that is the semi- IQR, as required.
Chat with our AI personalities
The Inter-quartile range is the range of the middle half of the data. It is the difference between the upper and lower quartile.Example: 35,80,100 110,120,120,170,180.The Inter-quartile range would be 145-90 or 55To find the interquartile range, you:1) Arrange the data in numerical order.2) Then find the median of the data sets.3) Find the median of the top half and bottom half. (of the set of numbers)4) The groups you now have are "quartiles"5) Find the interquartile range. (subtract the smaller range from the range)
find the domain and range of the function f(x)=x/2-3x
go to kids free maths songs .com\
You arrange the data set in ascending order. You then find the observation such that a quarter of the observations are smaller than it and three quarters are bigger. That value is the lower quartile. Next find the observation such that three quarters of the observations are smaller than it and a quarter are bigger. That value is the upper quartile. Upper quartile minus lower quartile = IQR.
in maths