Solve the below problem:
Q: Lerato is one of the members of the team. The following are the heights, in metres, of his last 12 jumps: 1,70; 1,68; 1,78; 1,90; 1,74; 1,85; 1,81; 1,95; 1,98; 2,00; 2,02; 1,80 Determine the following: 1.1.1. The median height jumped by Lerato during his last 12 jumps (4) 1.1.2. The height that is his lower quartile (Q1) (2) 1.1.3. The height that is his upper quartile (Q3) (2) 1.1.4. His Interquartile range (IQR), in centimetres