Lesson 5 Homework Practice Select An Appropriate Display __LINK__
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How to Select an Appropriate Display for Your Data
Data visualization is a powerful tool to communicate information and insights effectively. However, choosing the right type of display for your data can be challenging. Different types of displays have different strengths and weaknesses, and you need to consider your purpose, audience, and data characteristics before selecting one.
In this article, we will review some common types of displays and how to use them appropriately. We will also provide some examples and tips to help you create effective displays for your data.
Bar Graphs
Bar graphs are one of the most widely used types of displays. They show the number or frequency of items in different categories, such as gender, age group, or product type. Bar graphs are useful for comparing values across categories or showing the distribution of a categorical variable.
For example, you can use a bar graph to show the number of students who spend Sundays doing homework, visiting with friends, or working. This can help you see which activity is most popular among students.
To create a bar graph, you need to have a categorical variable on the x-axis and a numerical variable on the y-axis. The height of each bar represents the value of the numerical variable for each category. You can use horizontal or vertical bars, depending on your preference and space availability. You should also label the axes, provide a title, and use appropriate colors to make your bar graph clear and attractive.
Circle Graphs
Circle graphs, also known as pie charts, show how a whole is divided into parts. They are useful for showing the relative proportions or percentages of different categories in a single variable. Circle graphs are often used to show the composition of a population, a budget, or a survey result.
For example, you can use a circle graph to show the number of each of four types of flowers found in a garden. This can help you see what fraction of the garden is occupied by each type of flower.
To create a circle graph, you need to have a categorical variable with a finite number of categories. The circle represents the total value or frequency of the variable, and each slice represents the value or frequency of each category. The size of each slice is proportional to its percentage of the total. You should also label each slice with its category name and percentage, provide a title, and use different colors to distinguish the slices.
Histograms
Histograms are similar to bar graphs, but they are used for numerical variables instead of categorical variables. They show the frequency or density of data values in different intervals or bins. Histograms are useful for showing the shape and spread of a distribution of a numerical variable.
For example, you can use a histogram to show the prices of scuba gear in a store arranged by intervals. This can help you see how the prices are distributed and identify any outliers or gaps.
To create a histogram, you need to have a numerical variable on the x-axis and a frequency or density variable on the y-axis. The width of each bin represents the range of values in that interval, and the height of each bin represents the frequency or density of values in that interval. You should also label the axes, provide a title, and use consistent colors for the bins.
Line Graphs
Line graphs show how a numerical variable changes over time or another continuous variable. They are useful for showing trends, patterns, or relationships between two variables. Line graphs are often used to show time series data, such as stock prices, temperature changes, or population growth.
For example, you can use a line graph to show how Tobey practiced the flute for different amounts of time from Monday to Saturday. This can help you see how his practice time increased over the week.
To create a line graph, you need to have a continuous variable on the x-axis and another nu
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