Question

1. which type of graph would you use to show parts of a whole?
2. which type of graph would you use to show a quantity that changes?
3. which type of graph would you use to compare groups?

Explanation:

1. A pictograph or bar graph clearly displays parts of a whole (like school parts) with distinct categories.
2. A line graph is ideal for continuous data as it shows trends over a range.
3. A bar graph or double bar graph is used to compare distinct groups side-by-side.

Answer:

1. A pictograph or bar graph
2. A line graph
3. A bar graph (or double bar graph for multiple group comparisons)