logging in or signing up Histogram....... chougule.vaishali Download Post to : URL : Related Presentations : Let's Connect Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Copy embed code: Embed: Flash iPad Dynamic Copy Does not support media & animations Automatically changes to Flash or non-Flash embed WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 792 Category: Education License: All Rights Reserved Like it (0) Dislike it (0) Added: February 16, 2012 This Presentation is Public Favorites: 1 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript PowerPoint Presentation: HistogramPowerPoint Presentation: A histogram is "a representation of a frequency distribution by means of rectangles whose widths represent class intervals and whose areas are proportional to the corresponding frequencies What is a Histogram ?PowerPoint Presentation: It was first introduced by Karl Pearson. In statistics a histogram is a graphical representation showing a visual impression of the distribution of data. HistogramPowerPoint Presentation: The variate values are taken along X-axis and frequency along Y-axis and the rectangle is constructed. contd :-PowerPoint Presentation: When there is a lot of data. When data is Continuous ( mass, height, volume, time etc) Presented in a Grouped Frequency Distribution usually in groups or classes that are UNEQUAL Why use a Histogram ?PowerPoint Presentation: NO GAPS between Bars Continuous dataPowerPoint Presentation: Bars are different in width Determined by Grouped Frequency DistributionPowerPoint Presentation: AREA is proportional to FREQUENCY NOT height, because of UNEQUAL classes So we use FREQUENCY DENSITY = Frequency Class widthPowerPoint Presentation: Example:- Draw a histogram for the distribution as shown in the table Data Range Frequency 0-10 1 10-20 3 20-30 6 30-40 4 40-50 2PowerPoint Presentation: Histogram for the distribution of agePowerPoint Presentation: Sensible Scales Bases correctly aligned Plot the Class Boundaries Heights correct Frequency Density DrawingPowerPoint Presentation: Part of the power of histograms is that they allow us to analyze extremely large datasets by reducing them to a single graph that can show primary, secondary and tertiary peaks in data as well as give a visual representation of the statistical significance of those peaks. How Shall We Look at HistogramsPowerPoint Presentation: Histograms are a great way to show results of continuous data, such as: Weight Height How much time etc . conclusionPowerPoint Presentation: Thank you Presente d by:- Sarika.Chougule You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.