Table of Contents

## Why is it important to use charts and graphs?

Graphs and charts condense large amounts of information into easy-to-understand formats that clearly and effectively communicate important points. Bar graphs, line graphs, and pie charts are useful for displaying categorical data. Continuous data are measured on a scale or continuum (such as weight or test scores).

### What is the importance of using graph or chart in research?

They are used to organise information to show patterns and relationships. A graph shows this information by representing it as a shape. Researchers and scientists often use tables and graphs to report findings from their research.

#### Why do graphs and charts provide a good representation of data?

Graphs are a common method to visually illustrate relationships in the data. The purpose of a graph is to present data that are too numerous or complicated to be described adequately in the text and in less space. Do not, however, use graphs for small amounts of data that could be conveyed succinctly in a sentence.

**What is the importance of charts?**

How to Tell a Story With Charts and Graphs. The main functions of a chart are to display data and invite further exploration of a topic. Charts are used in situations where a simple table won’t adequately demonstrate important relationships or patterns between data points.

**What is the difference between charts and graphs?**

Charts present information in the form of graphs, diagrams or tables. Graphs show the mathematical relationship between sets of data. Graphs are one type of chart, but not the only type of chart; in other words, all graphs are charts, but not all charts are graphs.

## What makes the chart more attractive and meaningful?

Answer. °IF Specific Data Points are More Important: Emphasize the Line’s Data Points. °IF the Overall Trend is More Important: Emphasize the Line Trend.

### What 5 things should a good graph have?

There are five things about graph that need our attention when designing graphs:

- visual structures,
- axes and background,
- scales and tick marks,
- grid lines,
- text.

#### What are the 4 parts every graph must have?

The following pages describe the different parts of a bar graph.

- The Title. The title offers a short explanation of what is in your graph.
- The Source. The source explains where you found the information that is in your graph.
- X-Axis. Bar graphs have an x-axis and a y-axis.
- Y-Axis.
- The Data.
- The Legend.

**What are all the elements of a good graph?**

Core elements

- Axis, category and unit labels. Axes reflect what kind of information is presented and ought to be labeled.
- Scale, numerical axis and tick marks.
- Legend.
- Chart title.
- Grid lines.
- Reference lines and zones.
- Trend lines.
- Ranges and error bars.

**What makes a good bar graph?**

Bar graphs have three key attributes: A bar diagram makes it easy to compare sets of data between different groups at a glance. The graph represents categories on one axis and a discrete value in the other. The goal is to show the relationship between the two axes.

## What are the advantages of using a bar graph?

Bar graphs are easy to understand, widely used, and can show changes over time. That gives them an advantage over other graphs that are difficult to read or can only show a single data set.

### What are the 5 parts of a graph?

CARMALT – Basic parts of graphs

Question | Answer |
---|---|

5 components of a good graph are: | TITLE, AXES, INCREMENTS, LABELS, SCALE |

tells what graph is about | TITLE |

changing variable is known as _____ | INDEPENDENT |

Dependent variable is on which axis that is vertical? | Y |

#### What is the purpose of a bar graph?

Bar graphs are used to compare things between different groups or to track changes over time. However, when trying to measure change over time, bar graphs are best when the changes are larger.

**How do you describe a bar graph?**

Bar graphs transform the data into separate bars or columns. Generally, this type of visuals have categories on the x-axis and the numbers on the y-axis. So, you can compare statistical data between different groups. The bar graphs show which category is the largest and which is the smallest one.

**What is the title of this bar graph?**

A bar graph is a two-dimensional display of data in a bar format. This format allows you to compare characteristics and frequencies such as quantity and price between and within groups of data. Required bar graph titles include the name of the graph, the title of the vertical axes, and the title of the horizontal axes.

## How do you represent a bar graph?

Although the graphs can be plotted vertically (bars standing up) or horizontally (bars laying flat from left to right), the most usual type of bar graph is vertical. The horizontal (x) axis represents the categories; The vertical (y) axis represents a value for those categories.

### What is the difference between a histogram and bar graph?

Histograms are used to show distributions of variables while bar charts are used to compare variables. Histograms plot quantitative data with ranges of the data grouped into bins or intervals while bar charts plot categorical data.

#### What is multiple bar graph?

A multiple bar graph shows the relationship between different values of data. Each data value is represented by a column in the graph. In a multiple bar graph, multiple data points for each category of data are shown with the addition of columns. The quantity or amount of data is listed along the vertical, or y, axis.

**How do you represent data on a graph?**

Representing Data Graphically

- Create a frequency table, bar graph, pareto chart, pictogram, or a pie chart to represent a data set.
- Identify features of ineffective representations of data.
- Create a histogram, pie chart, or frequency polygon that represents numerical data.
- Create a graph that compares two quantities.

**How do you use different types of graphs?**

You would use:

- Bar graphs to show numbers that are independent of each other.
- Pie charts to show you how a whole is divided into different parts.
- Line graphs show you how numbers have changed over time.
- Cartesian graphs have numbers on both axes, which therefore allow you to show how changes in one thing affect another.

## How can you represent data?

Tables, charts and graphs are all ways of representing data, and they can be used for two broad purposes.

### How do you describe a trend in a graph?

Graph Trends

- One variable increases as the other increases.
- One variable decreases as the other increases.
- There is no change in one variable as the other increases or decreases.
- The data is so scattered and random that no trend can be determined from the graph.

#### How do you describe a polynomial graph?

The graph of a polynomial function will touch the x-axis at zeros with even multiplicities. The graph will cross the x-axis at zeros with odd multiplicities. The sum of the multiplicities is the degree of the polynomial function.

**How do you determine if a graph is a polynomial function?**