mean of data tutorial

There are three methods to find mean for a frequency distribution. (i) Direct method: where x is the mid-interval f is the frequency M is the mean (ii) Short-cut method: where A = assumed mean d = x - A (iii) Step-deviation method: where i = class size We illu..

Mean is the arithmetic average. To find mean of ungrouped data and it is obtained by adding the raw scores and dividing the sum by the number of items. There are three methods to find mean for a frequency distribution. (i) Direct method, (ii..

Find the mean for the data in the line plot. => 10 or 10.23 or 11.27 or 11..

Find the mean for the data shown in the line plot. => 5 or 4 or Green or Cannot be determined..

The mean for a data set is 43. If one more value 44 is added to the set, how does the mean get affected? => does not change or insufficient information to conclude or increases or decreases..

The mean for a data set is 176. If one more value 167 is added to the set, how does the mean get affected? => decreases or does not change or insufficient information to conclude or increases..

The mean deviation of a statistical data is defined as the arithmetic mean of the numerical values of the deviations of items from some average value. Mean deviation is also known as average deviation . The mean deviation is gen..

Module One: Exploring Data - Constructing and interpreting graphical displays of distributions of univariate data: Dotplot, stemplot, histogram, cumulative frequency plot Center and spread Clusters and gaps Outliners and other unusual features Shape Summarizing distributions of ..

Let AB and CD be two intersecting lines intersecting at O, forming four angles. XOX and YOY bisect the four angles. Let P be a point in the plane such that if PM ^ AB and PN ^ CD, then PM=..