What graphic tool is best suited to display the number of deaths due to prostate cancer over several years?

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

Answer: (C)

A line graph is ideally suited to display the number of deaths due to prostate cancer over several years because it effectively illustrates trends over time. By plotting data points representing the number of deaths for each year and connecting them with a line, viewers can easily see increases, decreases, or fluctuations in death rates across the designated timeframe.

Line graphs are particularly advantageous for time series data, allowing for clear visualization of long-term changes and patterns. This makes it easy to identify whether the mortality rate due to prostate cancer is rising or falling over the years.

In contrast, a bar chart, while useful for comparing discrete categories or values, does not focus on the continuity of data over time. Pie charts are best for displaying parts of a whole at a single point in time, which would not be suitable for tracking changes over several years. Histograms are designed to show frequency distributions of continuous data, which does not apply here since the question relates to specific yearly counts rather than ranges of values.