4. Create a histogram that shows the number of employees in incremental salary ranges of $10,000. Here, you want to show how many employees are making $0-$20,000; $20,001-$30,000; $30,001- $40,000; and so forth, up to the highest salary range. This involves counting how many employees are in each "salary bucket" to create a frequency distribution table and histogram. Histograms seem hard, but mastering how to visualize the frequency of events is helpful for analysis