To determine the best type of graph to display the given water usage data, let's consider the nature of the data and the purpose of the presentation.
The provided data shows the average amount of water used for different activities per day. The activities and their corresponding water usage in gallons are as follows:
- Taking a Shower: 14 gallons
- Flushing a Toilet: 19 gallons
- Washing Hands: 2 gallons
- Brushing Teeth: 1 gallon
- Washing Dishes: 2 gallons
- Washing Clothes: 18 gallons
- Washing a Car: 2 gallons
### Key Points for Choosing the Best Graph:
1. Categories and Comparisons: The data consists of distinct categories (various activities) and numerical values (amount of water used in gallons). A graph that makes it easy to compare these values across categories is ideal.
2. Clarity and Readability: The graph should make it easy to quickly see which activities use the most and least water.
3. Data Representation: The graph should represent each category (activity) with a corresponding value (gallons of water). Each activity is a separate category with its own discrete value.
### Suitable Graph Types Considered:
- Pie Chart: Good for showing proportions of a whole, but not ideal for comparing multiple categories with significant numeric differences.
- Line Graph: Useful for showing trends over time but not appropriate for comparing static categorical data.
- Bar Graph: Excellent for comparing different categories side by side. Each bar's length corresponds to the value, making it easy to compare water usage for different activities.
### Best Choice:
A Bar Graph is the best type of graph to display this data. This choice allows for clear comparisons between the water usage of different activities. Each bar can represent a different activity, and the length of the bar will be proportional to the amount of water used. This makes it straightforward to see, for example, that flushing a toilet uses more water than any other activity listed, while brushing teeth uses the least.
Thus, the graph type that best displays the given data of average water usage per day is a Bar Graph.
