Chart and Graphics

The post is about MCQs on Graphs and Charts. There are 20 multiple-choice questions about data visualization, graphical representations, bar charts, pie charts, histograms, frequency curves, component bar charts, pie charts, pictorial diagrams of frequency distribution, etc.

MCQs on Graphs and Charts with Answers

• A graphical device used for enumerating sample points in a multiple-step experiment is a
• A graphical method of representing the sample points of a multiple-step experiment is
• A(n) ———— is a graphical representation in which the sample space is represented by a rectangle and events are represented as circles
• A Histogram containing a set of
• Which of the following is an example of compressed data:
• For geographically base data, the bars are used:
• Decumulative frequency is presented by
• The frequency polygon is a closed diagram of
• A frequency curve touches x-axis
• Frequency curve is
• Component bar charts are used when data is divided into:
• In a Pie chart, usually, the arrangement of the sectors is:
• In a Pie chart, the angels for each sector are calculated by the formula
• A circle in which sectors represent various quantities is called
• If the frequency curve has a longer tail to the left, the distribution is
• A histogram is
• Low Birth Weight (LBW) data of a Hospital is best shown by
• A pictorial diagram of frequency distribution is denoted
• Which of the following types of diagrams can be used to find out the relationship between two variables?
• The line chart of the medical/ health data shows

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The post is about MCQs Charts and Graphs. There are 20 multiple-choice questions covering topics related to data visualizations, pie charts, bar charts, cumulative frequency distribution, frequency polygon, histogram, time series plot, etc. Let us start with MCQs Charts and Graphs.

Please go to Important MCQs Charts and Graphs 2 to view the test

MCQs Charts and Graphs with Answers

• In a Pie chart one can calculate the angles for each sector by the following formula
• A circle in which sectors represent various quantities is called
• A graph of a cumulative frequency distribution is called
• In a histogram, the area of each rectangle is proportional to
• A frequency polygon is constructed by plotting the frequency of the class interval and the
• For yearly average temperature data, the most effective graphical display is
• Suppose, you have data on house prices and the distance of each house from the city center. You are interested in finding the link between “house price” and “distance of each house from the city center”. Which is the most appropriate graphical display to assess the relationship between the variables?
• A graphical representation of a cumulative relative frequency distribution is called
• Which of the following statements is false?
• What measure of central tendency is shown in a box plot diagram
• The word ogive is also used for:
• A pie diagram is represented by a
• A curve that tails off to the right end is called:
• If a curve has a longer tail to the right, it is called
• A sector diagram is also called
• A histogram is a graph of
• A point representation of observed frequency is made in the
• $\frac{\text{Individual value}}{\text{Total value}}\times 360^o$
• In constructing ogive, what should be along the x-axis in the following?
• Enrolment of Patients in OPD of Mayo Hospital is best shown by

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The post is about MCQs Graphs and Charts. There are 20 multiple-choice questions covering topics related to data visualization techniques, pie charts, bar charts, graphs of time series, histograms, cumulative frequency curves, box plots, etc. Let us start with MCQs Graphs and Charts

Please go to Important MCQs Graphs and Charts 1 to view the test

MCQS Graphs and Charts

• Graph of time series data is called
• The process of systematic arrangement of data in rows and columns is called
• While constructing Frequency Distribution, the number of classes used depends upon
• Cumulative Frequency is ———– frequency
• The graph of cumulative frequency is called
• The average value of the lower and upper limit of a class is called
• Total Relative Frequency is always
• The total angles in the Pie chart are
• ———– use the division of a circle into different sectors
• A Histogram is a set of adjacent
• Cumulative Frequency Curve is also called
• In constructing a histogram, if the class interval size of one class is double that of others, then the width of that bar should be
• The graph of the normal distribution depends on
• The graph of a frequency distribution is called
• By dividing the upper and lower limits of a particular class we get
• An ogive is a
• The budgets of the two families can be compared by ———–.
• The graph showing the paired points ($X_i, Y_i$) is called a
• The graph below represents the relationship that is
• Which of the following is NOT appropriate for studying the relationship between two quantitative variables?

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Describing data effectively involves summarizing its key characteristics and highlighting interesting patterns or trends. Therefore, to extract information from the sample one needs to organize and summarize the collected data. The arrangement (organization) of data into a reduced form which is easy to understand, analyze, and interpret is known as the presentation of data.

Remember: our goal is to construct tables, charts, and graphs that will help to quickly reveal the concentration and shape of the data. Graphical Presentation of Data help in making wise decisions.

Visualizations: Describing Data Visually/ Graphically

Charts and graphs are powerful tools for showcasing data patterns and trends. In this article, we will discuss bar graphs and histograms only.

Describing Data Using Bar Graph

Bar diagrams can be used to get an impression of the distribution of a discrete or categorical data set. They can also be used to compare groups, and categories in explanatory data analysis (EDA) to illustrate the major features of the data distribution in a convenient form.

A graphical representation in which the discrete classes are reported on the horizontal axis and the class frequencies on the vertical axis and the class frequencies are proportional to the heights of the bars. It is a way of summarizing a set of categorical data.

Note that a distinguishing characteristic of a bar chart is that there is a distance or a gap between the bars i.e. the variable of interest is qualitative and the bars are not adjacent to each other. Thus a bar chart graphically describes a frequency table using a series of uniformly wide rectangles, where the height of each rectangle is the class frequency.

There are different versions of bar graphs such as clustered bar graphs, stacked bar graphs, horizontal bar graphs, and vertical bar graphs.

Describing Data in Histogram

A histogram is a similar graphical representation to bar graphs. It is used to summarize data that are quantitative i.e. measured on an interval or ratio scale (continuous). Histograms are constructed from the grouped data by taking class boundaries along the x-axis and the corresponding frequencies along the y-axis. The heights of the bars represent the class frequencies.

Note that the horizontal axis represents all possible values because the nature of data is quantitative which is usually measured using continuous scales, not discrete. That is why, histogram bars are drawn adjacent to each other to show the continuous nature of data. It is generally used for large data sets (having more than 100 observations) when stem and leaf plots become tedious to construct. A histogram can also help in detecting any unusual observations (outliers) or gaps in the data set.

Data (in its raw form) is a collection of numbers, characters, or observations that might seem overwhelming or meaningless. Describing data is the crucial step in unlocking its potential. In essence, describing data is like laying the groundwork for a building. It provides a clear understanding of the data’s characteristics, empowers informed decision-making, and paves the way for further analysis to extract valuable insights.

MCQs Economics

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