Which chart would be most appropriate to show the percentage of fall protection safety violations compared to all safety violations?

Which chart would be most appropriate to show the percentage of fall protection safety violations compared to all safety violations?

• A. Pie chart
• B. Histogram
• C. Bar chart
• D. Line chart

Answer: (A)

To show how a portion compares to the whole, you want a chart that represents each category as a slice of the total. A pie chart does this by dividing the circle into slices proportional to each category’s percentage of the total. The fall protection violations slice will clearly show its share relative to all safety violations, making the part-to-whole relationship easy to grasp at a glance. A histogram focuses on the distribution of a continuous variable, not categories within a total. A line chart tracks changes over time, which isn’t the goal here. A bar chart can compare category values, but it doesn’t inherently highlight the portion of the whole unless you explicitly present percentages; the pie chart naturally communicates the relative share.

To show how a portion compares to the whole, you want a chart that represents each category as a slice of the total. A pie chart does this by dividing the circle into slices proportional to each category’s percentage of the total. The fall protection violations slice will clearly show its share relative to all safety violations, making the part-to-whole relationship easy to grasp at a glance.

A histogram focuses on the distribution of a continuous variable, not categories within a total. A line chart tracks changes over time, which isn’t the goal here. A bar chart can compare category values, but it doesn’t inherently highlight the portion of the whole unless you explicitly present percentages; the pie chart naturally communicates the relative share.