16 Which visualization type is best for understanding data distribution? Histogram. Pie chart. Line graph. Waterfall chart. 0.5 points Question 17 What does a scatter plot help to visualize? The relationship between two data sets. Changes in categorical variables. Trends over time. Proportions of different categories. 0.5 points Question 18 What is the purpose of a box plot? To show the distribution of data, including median and quartiles. To visualize changes over time. To compare categorical variables. To display proportions of a whole. 0.5 points Question 19 What is a key advantage of using a line graph? It tracks changes over time for one or more variables. It shows proportions of a whole. It compares categorical variables. It visualizes data distributions. 0.5 points Question 20 Which chart is useful for visualizing trends in data over time? Line graph. Scatter plot. Stacked bar chart. Pie chart