What Does The Lower Quartile Mean. This formula does not give the value of Q3 rather the term number that will be Q3. 3 rd quartile or the upper quartile separate the highest 25 of data from the lowest 75.
1st quartile Q1 or 25th percentilethe number that separates the lowest 25 of the group from the highest 75 of the group. One definition of the lower quartile is the middle number between the smallest number and the median of the data set. It cuts off the lowest 25 of data.
1 2 5 6 7 8 8 10 12 15 20.
Understanding the Lower Quartile and the Quartiles. The lower quartile Q 1 is the median of the lower half of the data. 1 2 5 6 7 8 8 10 12 15 20. Quartile 2 Q2 which is also the Median 5.
