ungrouped data example

It is obtained by adding the raw scores and dividing the sum by the number of items. Suppose the raw scores are x 1 , x 2 , x 3 ,, x N then, mean where M = mean x = each score or item N = number of items = sigma, which means 'summation of ' Find the mean of 6, 10, 4, 12, 8. M = 8 ..

Two lines AB and CD intersect at O forming four angles XOX and YOY are the lines bisecting the four angles. P is a point of (XOX) U (YOY) such that PM ^ AB and PN ^ ..

Consider Standard IX of a school. There are four divisions in this class. Standard IX-A has 10 girls and 12 boys. Standard IX-B has 6 girls and 20 boys. Standard IX-C has 18 girls and 12 boys. Standard IX-D has 16 girls and 24 boys. This data can be represented in a tabular form as shown ..

Match data in Set A with corresponding data in Set B: => I : b, II : g, III : d, IV : i or I : c, II : g, III : h, IV : e or I : f, II : a, III : d, IV : i or I : f, II : j, III : a, IV : b..

Graphical Representation of Data - Most people show lack of interest or have no time to go through facts and figures given in a daily newspaper or a magazine. But if these figures are graphically presented, they become easier to grasp and catch the eye and have a more lasting effect on th..

The graphical representation of data makes the reading more interesting, less time-consuming and easily understandable. The disadvantage of graphical presentation is that it lacks details and is less accurate. In our study, we have the following graphs: 1. Bar Graphs 2. Pie Charts 3..

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 ..

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 illustrate each of these methods w..

Telefacsimile's or Fax machines are a must for many businesses around the world. The fax machine however, did not become widely used until the late 1980'..