Final answer:
To display the percentage of customers' hair styles from a survey, both a pie chart and a bar graph could be appropriate. The choice between them depends on whether the focus is on visualizing the part-to-whole relationship (pie chart) or comparing categories (bar graph). Consideration should also be given to how the data will be used and ensuring clarity in the presentation.
Step-by-step explanation:
To display the percentage of customers' hair styles in each of the seven categories from a survey, a pie chart or bar graph could be used. If the goal is to illustrate the part-to-whole relationships and how each category contributes to the whole in terms of percentage, a pie chart might be the best choice. The pie chart can show the proportion of each hair style category clearly and is especially effective when the number of categories is not too large.
On the other hand, a bar graph is particularly useful if you want to compare the categories against each other or show changes over time. The height or length of each bar represents the percentage of individuals with each hair style, and the graph can easily be read horizontally or vertically. If comparisons between different categories are more important than the actual percentage, a Pareto chart could also be a good option, as it orders the bars by category size, from largest to smallest.
In deciding which graph to use, it's important to consider the context and how the data will be used. Both types of graphs give valuable insights, and the choice depends on what aspect of the data you wish to emphasize. Either way, it is crucial to make the numbers and percentages legible and ensure that colors or shades used are distinguishable for clarity.