Answer: quartile

AnswerCrossword Clue
QUARTILEFourth, in statistics
QUARTILEStatistical dividing point in a four-group data set
QUARTILEStatistical boundary
QUARTILEStatistical grouping
QUARTILEStatistical boundary value
quartilean aspect of planets
quartileof or pertaining to the aspect of two heavenly bodies when their longitudes differ by 90┬░
quartilequartile aspect
quartile(in a frequency distribution) one of the values of a variable that divides the distribution of the variable into four groups having equal frequencies