The upper quartile of a set of data is a value such that a quarter of the observations are greater than that value. The lower quartile is similarly defined as the value such that a quarter of the observations are less than that value.
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The lower quartile is the second smallest and the upper quartile is the fourth smallest (second largest).
The interquartile range is well known as a measure of statistical dispersion. It is equal to difference between upper and lower quartiles. The quartiles is a type of quantile.
yes! Since Q1 = P25 Q2=P50 Q3=P75 Similarly, D1=P10 D2=P20 . . . D9=P90 Where, Q1, Q2, Q3 are lower, median and upper quartiles respectively Dn are the deciles Good Luck~! Sehrish
A lower quartile i s the mediaon of the lower half of a data set. A data set is divided up into different quartiles.
formula in solving quartiles: QK = ([kN - <CF] / FQK)i where in: Q = Quartile k = given value N = Total number of variables <CF = Lower Frequency of Lower Area i = Interval