Question

what type of graph would be best for displaying the frequency of the different types of depression (i.e., post - partum, catatonic, clinical, etc.) for a sample of participants? bar or polygon polygon histogram bar

Explanation:

To determine the best graph for displaying the frequency of different types of depression (categorical data), we analyze each option:

• Bar or polygon: Polygons are used for continuous data (e.g., intervals of scores), not categorical. So this is incorrect.
• Polygon: As mentioned, polygons are for continuous data, not categorical (types of depression are distinct categories). Incorrect.
• Histogram: Histograms are used for continuous data grouped into intervals (e.g., age groups with ranges). They are not suitable for categorical data with distinct categories. Incorrect.
• Bar: Bar graphs are ideal for displaying the frequency of categorical variables (like different types of depression). Each category (post - partum, catatonic, clinical, etc.) is represented as a separate bar, and the height of the bar shows the frequency.

Answer:

D. bar