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Lower Quartile (Q1): the number that divides the lower half of the
data into two equal halves.
For example, given this data:
25, 26, 27, 28, 29, 30, 40, 41, 42
The Median is 29. Now, you need to find the lower quartile. You want to look at all the data that is below the median, so:
25, 26, 27, 28,
The median splits the data into two groups. Find the median of the lower group, which is 26.5 ((26+27)/2). The lower quartile is 26.5
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Who do you work out the upper and lower quartile?
you do work out the upper and lower quartile
What are characteristics of lower quartile?
25% of the observed values are smaller than the 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.
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?
interquartile range is upper quartile (or quartile 3) minus lower quartial ( or quartial 1 ) For example the quartile 3 is 165 and the quartile 1 is 125. The interquartile range is 40. You can go online and see pages. Thank you
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.
