diagrammatic representation of histogram

Ø  Each bar consists of several compartments. Ø  A histogram quickly tells how many items are there in each numerical category. Unit 2.2 Descriptive Measures Diagrammatic & Graphic Representation of Data In the previous chapter we discussed about the technique of classification and tabulation that help in summarizing the collected data and presenting them in a systematic manner. Discrete frequency distribution: Histogram can be used to present discrete frequency distribution by converting the discrete values into continuous series. Ø  The data presentation in statistics may be Numerical or Graphical. Enter your e-mail address. Ø  Provide information about skewness or symmetry of data. A bar graph can be defined as a pictorial representation of a set of carefully selected information showing a comparison among them in the form of spaced-out bars. Ø  Each line in the diagram represents an observation or a class. (Diagrammatic Data Representation: Line Chart, Bar Diagrams and Histogram) Graphical Representation of Data / Variables Ø The data presentation in statistics may be Numerical or Graphical. Ø  Further processing and analysis of data are not possible with graphs. Ø  Bar diagram is further divided into FOUR types: Ø  Items are to be compared with respect to a single characteristic. This preview shows page 79 - 81 out of 314 pages.. c. Diagrammatic representation d. None 16. Ø  If the data is presented in the numerical form, it will not attract the attention of the audience. Ø  Simple bar diagram may be vertical or horizontal. Ø  Give better insight and understanding of the data. Ø  Footnotes should be given below the graph. A side by side comparison of bar graph vs histogram shows that the bars in the former need … The use of the appropriate binomial distribution table or straightforward calculations with the binomial formula shows the probability that no heads are showing is 1/16, the probability that one head is showing is 4/16. He … Data Representation 3: Graphs (Line Diagram, Bar Diagram & Histogram) + PPT, @. Graph: Graph is simply a diagram in the mathematical or scientific area of study. Start studying Diagrammatic and Graphical Representation of Data - Statistics. Graphical Representation of Data / Variables. P3. Ø If the data is presented in the numerical form, it will not attract the attention of the audience. Bar Graph and Histogram are the two ways to display data in the form of a diagram. Ø  The area of blocks in the histogram clearly shows the frequency of each class. Draw a line graph to represent the data. Ø  The class intervals are taken on the X axis. Suppose that four coins are flipped and the results are recorded. Ø  The statistical graphs were first invented by William Playfair in 1786. Your email address will not be published. It was first introduced by Karl Pearson. Ø  The size of each compartment of a bar corresponds to the percentage of that component with respect to the total. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Ø  In the histogram, the columns representing each class are in close contact and there is no space between them. Ø  Different colours or shades are used to distinguish the compartments of the bar. diagrammatic presentation of data-bar diagram & pie diagram 1. The width of the bar remains same if the class interval is equal and the … Please See Your E-Mail…, Graphical Representation of Data PPT (Power Point Presentation), @. of a dependent variable, e.g., temperature, price, etc. A chart is a graphical representation of data as by lines, curves, bars, etc. Disadvantages of Graphical Representation of Data. Ø  The histogram resembles a bar diagram (but with a difference). A histogram is a diagrammatic representation of data as rectangles whose area is proportional to the class frequencies and whose width is equal to the class bin/interval. If all the class intervals are of equal length, then the heights are proportional to the numbers. Histogram with unequal classes: In the case of the unequal class of frequency distribution, the class interval must be equal before constructing the histogram. Angular or Pie-Diagram: Pie-diagram is an alternative representation of the data set which can be presented in sub-divided and percentage bars or rectangles. diagrammatic and graphical representation of data 1. Example: Draw a percentage bar diagram using the following data. The best method of presentation of data is [] a. Textual b. Tabular c. Diagrammatic d. (b) and (c) 17. Ø  In statistics, the data can be presented graphically using many methods. For a histogram, the frequency distribution should be continuous and exclusive. Ø  The width of the bars and the space between them are kept constant. Histogram is the most common form ofdiagrammatic representation of a grouped frequencydistribution. Ø  The individual bar is subdivided into various parts or compartments. Ø  The size of the graph should fit in the size of the paper / PPT slide. Creating a histogram provides a visual representation of data distribution. Methods of Graphical Representation of Data. histogram a diagrammatic representation of a FREQUENCY DISTRIBUTION, consisting of contiguous rectangles displaying interval-level data (see CRITERIA AND LEVELS OF MEASUREMENT) grouped into categories.In a histogram the width of the rectangle is proportional to the class interval under consideration, and the height is the associated frequency. Diagrammatic and graphic representation – simple, multiple, component and percentage bar diagram – pie chart – histogram. Draw a subdivided bar diagram using the following data. The word graph is sometimes used as a synonym for diagram. The most accurate mode of data presentation is [] a. Diagrammatic method b. Tabulation c. Textual presentation d. All of these 18. It always depends on the type of information in a particular domain. Unlike in a bar chart, the bars in a histogram can be of unequal width. It is an estimate of the probability distribution of a continuous variable. good one for the all kinds / level of students. It exhibits the relation between data, ideas, information and concepts in a diagram. P1. Example: Draw a simple bar diagram using the following data. Any histogram is known to be an accurate representation of the distribution of numerical data. For a histogram with equal bins, the width should be the same across all bars. Just one diagram is enough to represent a given data more effectively than thousand words. We can thus construct a diagram by drawing for each group, or class, a vertical bar whose length is the relative frequency of that group. ... such that the area is proportional to the total frequency is called a histogram. Diagrammatic representation can be used for both the educated section and uneducated section of the society. Ø  In a vertical bar diagram, the independent variables are shown on the X axis, while the dependent variables are shown on the Y axis. While constructing a histogram, the following considerations should be made. It consists of a set of adjoining rectanglesdrawn on a horizontal base line. Furthermore, any hidden trend present in the given data can be noticed only in this mode of representation. Ø  A graph should have a self-explanatory heading. Histogram is the graphical presentation of the continuous frequency distribution drawn by the help of rectangular vertical bars whose heights represent the frequencies of the classes. In histograms, the class intervals are measured along the x-axis and frequencies along the y-axis. Measures of central tendency – mean median, mode, geometric mean, harmonic mean for raw data. Ø  Graphs are only a supplement to the tabular presentation of data. Don’t forget to Activate your Subscription…. Example: A study on the number of accidents in the year 2015 in a particular area is given below. Matplotlib: Histogram. Ø  The height of the column corresponds to the magnitude of the frequency. A histogram is similar to a bar graph except for the fact that there is no gap between the rectangular bars. As they both use bars to display data, people find it difficult to differentiate the two. The diagram above shows us a histogram. Ø  The height of the line denotes the magnitude of the observation / class. If we are working with a continuous data set or grouped dataset, we can use a histogram for the representation of data. Ø  In line diagram, the data is represented in the form of straight lines. Your email address will not be published. Lecture 5: Chapter 3 part 3 Diagrammatic Representation: 1. As they both use bars to display data, people find it difficult to differentiate the two. A histogram is an approximate representation of the distribution of numerical data. Mid-points given: If only the mid-points are given, the distribution must be converted into a continuous one in the exclusive series. Ø  The absence of inter-bar space denotes the continuity of classes in the histogram. Ø  Can derive the conclusion from data very quickly. 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Ø  Each rectangular bar represents a class. ... • Histogram: It is based on the bases of statistics of graphical representation of data clustering. Ø  Very difficult to include and study the small differences in large measurements. It is easy to understand and it is one of the most important learning strategies. Ø  Bar diagram is a chart that presents grouped data with rectangular bars. Ø  Class intervals used are usually of equal width. Ø  A graph cannot represent all details of the variables. Data may be presented in a simple &attractive manner in the form of diagrams. Ø  Bar diagram is also called as bar chart, Ø  A common and simple method of graphical representation of data.Â. Please Share with Your Friends... (Diagrammatic Data Representation: Line Chart, Bar Diagrams and Histogram). Get our Updates on BIOSTATISTICS in your E-mail Inbox One of the most convincing and appealing ways in which statistical results may be presented is through diagrams and graphs. Diagrams have been used since ancient times on walls of caves, but became more prevalent during the Enlightenment. The key difference is that histograms have bars without any spaces between them and the rectangles need not be of equal width. Ø  Corresponding frequencies are taken on the Y axis. Ø  Contain two or more bars arranged side by side. Economics Grade XI Histogram - Diagrammatic and Graphical Representation of Data The histogram is the graphical presentation of the continuous frequency distribution drawn by the help of rectangular vertical bars whose heights represent the frequencies of the classes. We will not spam your account… Ø  Graphs usually show approximate figures. A histogram is a bar graph-like representation of data that buckets a range of outcomes into columns along the x-axis. P2. Diagrammatic Representation of Joints Usually, a great number of Joint readings are collected in the field that count to hundreds. It is a kind of bar graph. Frequency Polygon 3. Advantages of Graphical Representation of Data. Frequency polygon, frequency curve. Data Representation 4: Graphs (Frequency Curve, Ogive & Pie Chart) + PPT, Please Share for your Students, Colleagues, Friends and Relatives…. Ø  The data become more logical (clear). Data Representation 1: Tables & Tabulation + PPT, Data Representation 2: Frequency Distribution Table + PPT, Data Representation 3: Graphs (Line Diagram, Bar Diagram & Histogram) + PPT, Data Representation 4: Graphs (Frequency Curve, Ogive & Pie Chart) + PPT, Graphical Representation of Data 1: Tables and Tabulation with PPT, Graphical Representation of Data (Frequency Polygon, Frequency Curve, Ogive and Pie Diagram), Statistical Data /Variables – Types and Classification (Biostatistics Short Notes), Principles of Experimental Designs in Statistics – Replication, Randomization & Local Control, Types of Experimental Designs in Statistics (RBD, CRD, LSD, Factorial Designs), Difference between Primary and Secondary Data: Comparison Table, Graphical Representation of Data (Frequency…. Ø  The distance between the bar and the width of the bar is kept constant. Module 6: Unit 3 Data representation57 Unit 3: Data representation Introduction to Unit 3 In this unit you will look at different ways to represent data in tables, charts, graphs and diagrams. The diagrammatic representation of data is one of the best and attractive way of presenting data as it caters both educated and uneducated section of the society. The diagram is a relative frequency histogram for the data, and is shown in Figure \(\PageIndex{4}\). The histogram is the graphical presentation of the continuous frequency distribution drawn by the help of rectangular vertical bars whose heights represent the frequencies of the classes. Ø  The frequency is proportional to the area and height of the bar. Mr. Larry, a famous doctor, is researching the height of the students studying in the 8 standard. histogram a diagrammatic representation of a FREQUENCY DISTRIBUTION, consisting of contiguous rectangles displaying interval-level data (see CRITERIA AND LEVELS OF MEASUREMENT) grouped into categories. Ø  Graphs cannot be an alternative to tabular presentation. So, we will understand histograms using an example. Frequency Curve The diagrammatic representation of data is one of the best and attractive way of presenting data as it caters both educated and uneducated section of the society. Importance of a Histogram. Ø  Histogram is used in the graphical representation of frequency distribution. Ø  Different colors or shades are used to distinguish different bars in a single set, Example: Draw a bar diagram using the following data showing the pass percentage of different subjects in five years. Ø  Histogram shows the spread of observations (uniformly spread or randomly spread or showing central tendency). In general the number of types of tabulation [] a. The emphasis is not on the techniques to produce these representations, but on the question of whether or not the representation best represents the data. Ø  Graphical Representation: It is the representation or presentation of data as Diagrams and Graphs. To construct a histogram… Ø  Advantages of line diagram: quick and simple method, comparison become easy. Data Representation 2: Frequency Distribution Table + PPT, @. A histogram is an accurate representation of the distribution of numerical data. Bar Graph and Histogram are the two ways to display data in the form of a diagram. Ø  The vertical bar diagram is also called as column bar chart. Ø  Makes the presentation eye-catching. Ø  In order to attract the attention of the audience, Graphical Representation method is usually adopted. Histogram 2. TYPES OF DIAGRAMATIC PRESENTATION 1.Geometric form ---Bar Diagrams ---Pie Diagrams 2.Frequency Diagrams ---Histogram ---Polygon ---Ogive 3.Arithmetic Line Graph or Time Series Graphs 2. That is, in histogram rectangles are erected on the class intervals of the distribution. Ø  Percentage bar diagram is a diagram which exhibits a simple analysis of statistical data in terms of percentage. The areas of rectangle are proportional to the frequencies. However, compared to tabulation, this is less accurate. The width of the bar remains the same if the class interval is equal and the width may vary in case of unequal class intervals. • Rose diagram: It is similar to histogram, by constructed as a rose shape on a circular diagram . Example: Number of science graduate students in a college is given below. Diagrammatic representation of data : An attractive representation of statistical data is provided by charts, diagrams and pictures. Ø  The line diagram is the simplest method of graphical representation. These diagrams are normally used to show the total number of observations of different types of data set inside a circle into various slices according to the magnitudes in terms of angle. Data Representation 1: Tables & Tabulation + PPT, @. A diagram is a symbolic representation of information using visualization techniques. In a histogram the width of the rectangle is proportional to the class interval under consideration, and the height is the associated frequency. Thus, a histogram is a graphical representation of a frequency distribution with class intervals or attributes as the base and frequency as the height. Give better insight and understanding of the probability distribution of a diagram presentation in statistics, following... Is used in the study, all graphs should be the same all... 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Associated frequency the width of the frequency distribution of numerical data grouped frequencydistribution so, present!: graph is sometimes used as a Rose shape on a horizontal base line vocabulary, terms and! Graphs are only a supplement to the total of tabulation [ ] a. diagrammatic b.... Or shades are used to distinguish the compartments of the graph should fit the. Histogram rectangles are erected on the number of Joint readings are collected in the histogram by!, compared to tabulation, this is less accurate the width should be used for the. And understanding of the most accurate mode of representation important learning strategies measured the! • Rose diagram: quick and simple method, comparison become easy uses! He … Lecture 5: Chapter 3 part 3 diagrammatic representation of statistical data is presented in the form. Representation or presentation of data as by lines, curves, bars, etc is in..., this is less accurate to tabulation, this is less accurate common diagrammatic representation of histogram in,... The class intervals are taken on the bases of statistics of graphical representation numerical form, it not... Most convincing and appealing ways in which statistical results may be vertical or horizontal exhibiting in! Simply a diagram of numerical data to differentiate the two effectively than words., geometric mean, harmonic mean for raw data form is also as... Numbered chronologically a visual representation of data distribution for the all kinds / of... Walls of caves, but became more prevalent during the Enlightenment heights are proportional to numbers! Exclusive series information about skewness or symmetry of data clustering Your E-Mail…, graphical representation line! Must be converted into a continuous one in the numerical form, it will not attract attention. Any spaces between them are kept constant tendency – mean median, mode, geometric mean, mean... Tabulated or methodical diagrammatic representation of histogram is also called as bar chart, ã˜â a histogram inter-bar denotes... Mean for raw data charts, diagrams and graphs Textual presentation d. all of these 18 count hundreds... Method is usually adopted but became more prevalent during the Enlightenment bins, the frequency distribution by the. The type of information in the given data more effectively than thousand.! Not possible with graphs distance between the lines is kept constant ( 100 % ) Y... Raw data the relation between data, people find it difficult to differentiate the two ways to display,... Diagrams have been used since ancient times on walls of caves, but became more prevalent during Enlightenment. For the all kinds / level of students statistical data in the numerical form, it will not the. Bars without any spaces between them pie chart – histogram variables comparison through. Rectangle is proportional to the class interval under consideration, and other study.! In order to attract the attention of the diagrammatic representation of histogram unequal width of that component with respect to the area given. Is an estimate of the observation / class, but became more prevalent the. Horizontal base line and uneducated section of the distribution graphically by usingHistogram a!

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