The upper quartile, for a set of ordinal observations, is a value such that a quarter of the observations have a greater value. Similarly, the lower quartile is a value such that a quarter of the observations have a smaller value.
Interquartile Range, or IQR
The lower quartile.
The lower quartile is the line that represents the left-hand edge of the "box", in the box and whisker plot.
The lower quartile is the second smallest and the upper quartile is the fourth smallest (second largest).
you do work out the upper and lower quartile
Subtract the lower quartile from the upper quartile.
A quartile is 1/4 or 25% of the total. So if you the population is 24 (say in a classroom), then a quartile is 6. Sort the grades lowest to highest, then the bottom 6 are in the lower quartile. The grade for #6 is the lower quartile.
in a set as such {2,3,4,5,6,7,8,}, 5 would be the median, 7 would be the upper quartile, and 3 would be the lower quartile. The lower quartile divides the lower half of a set of data into two equal parts
the interquartile is just subtracting the high quartile from the low quartile. * * * * * No, it is subtracting the lower quartile from the higher quartile.
25% of the observed values are smaller than the lower quartile.
IQR = Inter-Quartile Range = Upper Quartile - Lower Quartile.
No, interquartile range cannot be for any data. The lower quartile for data must be used below the lower quartile.
lower quartile = 1/4(n+1) upper quartile = 3/4(n+1) where n is the number of the values. Obviously the values have to be ordered from the lower to the higher: the number you'll get is the position in this order. Let's say you get 4 for your lower quartile, it means that the 4th value is your lower quartile.
It is the upper quartile minus the lower quartile.
A lower quartile for a set of four observations is not a meaningful concept.
It shows the minimum, lower quartile, median, upper quartile and maximum of a set of observations. It may show outliers separately.It shows the minimum, lower quartile, median, upper quartile and maximum of a set of observations. It may show outliers separately.It shows the minimum, lower quartile, median, upper quartile and maximum of a set of observations. It may show outliers separately.It shows the minimum, lower quartile, median, upper quartile and maximum of a set of observations. It may show outliers separately.