Question 7: Descriptive Statistics and Statistical Inference The heights of the last 20 US presidents are in cm: 185, 182, 188, 188, 185, 177, 182, 193, 183, 179, 175, 188, 182, 178, 183, 180, 182, 178, 170, 180. 7.1) Make a histogram of the heights, choosing your points wisely. 7.2) Calculate the frequency of each data point (mean, median, and 90th percentile). How do these relate to the shape of the histogram