2. A random sample of 50 households in a region and the number of cars per household shown in the frequency table below. X (No of cars} f [frequency] X*f D 3 1 15 2 24 3 8 a} Make a graph corresponding to this frequency table by hand and also attach the graph obtain on Excel. Label both axes carefully b) Estimate the mean and the median of the distribution and compare them. Explain how you got them. Are the values you got exact or approximate