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What is the upper and lower quartile?
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.
What is the difference between the upper quartile and the lower quartile called?
Interquartile Range, or IQR
What is the median of the lower half of a set of numbers?
The lower quartile.
What is the lower quartile on a box and whisker plot?
The lower quartile is the line that represents the left-hand edge of the "box", in the box and whisker plot.
What is the purpose of quartile deviation?
In a data sample, the purpose of quartile deviation is a way to measure data dispersion instead of using the range. The quartile deviation is found by subtracting the lower quartile from the upper quartile, and dividing this result by two.
Who do you work out the upper and lower quartile?
you do work out the upper and lower quartile
How do you find the inter quartile range?
Subtract the lower quartile from the upper quartile.
How do you solve the lower 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.
What is the Definition of 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
Inter quartile range?
the interquartile is just subtracting the high quartile from the low quartile. * * * * * No, it is subtracting the lower quartile from the higher quartile.
What are characteristics of lower quartile?
25% of the observed values are smaller than the lower quartile.
How do you finde iqr?
IQR = Inter-Quartile Range = Upper Quartile - Lower Quartile.
Can interquartile range be used for any data eg data below the lower quartile to find if the data is spread out or close together or must we use the lower quartile for data below the lower quartile?
No, interquartile range cannot be for any data. The lower quartile for data must be used below the lower quartile.
Formula calculating 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.
What is the interquartile range equal to?
It is the upper quartile minus the lower quartile.
What is the lower quartile of 45 47 50 and 51?
A lower quartile for a set of four observations is not a meaningful concept.
What does a box and whisker chart show?
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.
