Q1) Define the following a- Quantitative Variable b- Median c- Sampling bias d- Variance e- Random sample f-Sample Q2) Find the five number summary for the following age observations: 35, 45, 40, 20, 25, 41, 55, 62, 18, 22, 25, 40 Q3) Find the Standard Deviation of the following : weight observation data: 100, 120, 130, 150, 140