Histogram A histogram is from of graphical representation of grouped frequency distribution with continuous classes. In a histogram data represents like the bar graph, but it there is no gap between rectangular bars. The rectangular bars show the area of proportional to the corresponding frequency of a variable and the width of the bars represents […]
Read More →Pictograph There are many methods of representing statistical data pictorially. One of them is picture symbols or icons. Interpreting the picture graph means drawing some conclusions from it. In graph theory, a “Pictograph” is a graph that represent (numerical) statistical data through pictures symbols or icons. A pictograph […]
Read More →Double Bar Graph Definition: When we compare to data groups of information, situations or events we use “Double Bar.” Example: Five students marks in quarterly and half yearly examination are given below. Draw a double bar graph and give the answer of questions (1) Give the […]
Read More →Mode – Definition – Examples In this tutorial, we shall learn about mode and how to find mode of a given observation. Definition: The mode of a data set is the value, occurring most frequently in set of observations. In other words, a data set having highest frequency of observations is its mode. How to find […]
Read More →Mean of Grouped Data 1. The mark obtained by 30 students of class 6th in physics paper consisting of 100 marks are given in below table. Find the mean of marks obtained by the students? Marks obtained xi 10 20 36 40 50 56 60 70 72 80 88 92 95 Number ofstudents fi 1 1 […]
Read More →Range – Definition – Examples – Formula – Statistics Definition: In statistics and mathematics, range is defined as the difference between the highest and lowest value in a set of data. Range Formula The formula for the range is the highest(maximum)value minus lowest(minimum) value in a data set. Range = Highest value – Lowest value […]
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