This page covers methods for data visualization, including stem-and-leaf plots, line and bar graphs, histograms, and frequency polygons. It discusses measures of data location (percentiles, quartiles)...This page covers methods for data visualization, including stem-and-leaf plots, line and bar graphs, histograms, and frequency polygons. It discusses measures of data location (percentiles, quartiles) and central tendency (mean, median, mode), emphasizing skewness in data distributions. Additionally, it addresses standard deviation for assessing data spread in samples and populations.