 If too many pieces of data are used, pie chart becomes less effective.

They themselves may become crowded and hard to read if there are too many pieces of data, and even if you add data labels and numbers may not help here.

You need a series to compare multiple sets as this chart only represents one data set..

Line graph: Advantage: It’s better for seeing the rate clearly. Disadvantage: It’s harder to compare.

## What is the importance of pie chart?

Pie charts are generally used to show percentage or proportional data and usually the percentage represented by each category is provided next to the corresponding slice of pie. Pie charts are good for displaying data for around 6 categories or fewer.

## Why are pie charts bad?

The basic premise is that pie charts are poor at communicating data. They take up more space and are harder to read than the alternatives. The brain’s not very good at comparing the size of angles and because there’s no scale, reading accurate values is difficult.

## Why would someone use a bar graph?

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.

## Which of the following is a disadvantage of line plot?

What Are the Disadvantages of A Line Graph? … Plotting too many lines over the graph makes it cluttered and confusing to read. A wide range of data is challenging to plot over a line graph. They are only ideal for representing data made of total figures such as values of total rainfall in a month.

## Why are bar graphs better than pie charts?

In short, a pie chart can only be used if the sum of the individual parts add up to a meaningful whole, and is built for visualizing how each part contributes to that whole. Meanwhile, a bar chart can be used for a broader range of data types, not just for breaking down a whole into components.

## What are the features of pie chart?

There are two features that let us read the values on a pie chart: the angle a slice covers (compared to the full circle), and the area of a slice (compared to the entire disk). Research suggests that we look at the angle in the center, essentially reducing the chart to just the crossing lines there.

## What is the use of double bar graph?

A double bar graph is used to display two sets of data on the same graph. For example, if you wanted to show the number of hours that students worked in one month compared to another month, we would use a double bar graph. The information in a double bar graph is related, and it compares one set of data to another.

## 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 are the disadvantages of bar chart?

The following are Disadvantages of bar graph:often require additional explanation.fail to expose key assumptions, causes, impacts and patterns.can be easily manipulated to give false impressions.

## What is considered to be the greatest weakness of bar charts?

1. In any project, there are large numbers of activities which can be started with a certain degree of concurrency; the bar chart cannot indicate clearly the independencies among the various activities. This is a major limitation.

## What are the advantages of bar diagram?

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 information does the bar graph give?

A bar graph shows comparisons among discrete categories. One axis of the chart shows the specific categories being compared, and the other axis represents a measured value. Some bar graphs present bars clustered in groups of more than one, showing the values of more than one measured variable.

## Which reason provides the best explanation of why a bar graph?

Which reason provides the best explanation of why a bar graph was selected to show the data in the table? Bar graphs are used to compare separate items. Bar graphs are used when data are continuous.