OBJECTIVE FORESTRY

Detailed explanation-1: -The upper quartile, or third quartile (Q3), is the value under which 75% of data points are found when arranged in increasing order. The median is considered the second quartile (Q2). The interquartile range is the difference between upper and lower quartiles.

Detailed explanation-2: -In order to calculate it, you need to first arrange your data points in order from the lowest to the greatest, then identify your 1st and 3rd quartile positions by using the IQR formula (N+1)/4 and 3 × (N+1)/4 respectively, where N represents the number of points in the data set.