Find the range for this list of numbers 76 61 39 59 3 75 37 26 34 86 55 8 69 47 41   q1- q3- iqr

The lower quartile is a value below which 25% of the observations lies and above which 75% of the observations lie. Similarly, the upper quartile is the value below which the 75% of the observations lie and above which the 25% of the observations lie. In addition, the median is a value below which 50% of the observations lies and above which 50% of the observations lie.