Maths Keeda

Mode Welcome back friends, This is the second part of our statistics series. In First part, we have look all the three methods to find mean: Direct Method, Assumed Mean Method & Step Deviation Method. In this second part, we are going to study what is mode & how  to calculate it in an grouped data. What is Mode? According to Wikipedia, "The  mode  of a set of data values is the value that appears most often in the data set". For Ex, If we have a data set say S, such that S = {1,2,2,2,2,3,3,4,4,4,5,9,2,4} Now in order to find the mode, we will simply count the occurrences of each element. The element having highest frequency will be our mode. Element Frequency 1 1 2 5 3 2 4 4 5 1 9 1 Now from the table, it is clear that 2 occurs most often. Therefore, the mode of the data is 2. In the above case, the data is not so complex &am

Hello friends, I am going to start a new series of statistics. This is the first part of this series & it includes Calculation of Mean using various methods: Direct Method Assumed Mean Method Step Deviation Method As you all know, There are three measures of central tendencies, namely-Mean, Median, & Mode, which tries to describe the entire set of data. Mean: Mean is defined as the sum of all observations divided by Number of observations in a set. For grouped data, we use class intervals to represent the data. A class Interval consist of two values: Upper Limit & Lower Limit Calculation of Class Mark: Class Mark of a class interval can be calculated by dividing the sum of upper limit & lower limit by 2. 1. Direct Method: 2. Assumed Mean Method: 3. Step Deviation Method: Solved Numericals finding the mean using all the three methods in the lecture below: Google+:  https://plus.google.com/u/0/+ujjwalgoyall