Presentation Of Data

Question 1

Array form

Answer 1

Present the available data in ascending or descending order of magnitude

Question 2

Tabular form

Answer 2

Manage the available data in rectangular form comprising of rows and columns

Question 3

Classification

Answer 3

Process of distributing collected observations into different classes or groups according to their resemblances or affinities

Question 4

Tabulation

Answer 4

Process of managing available data into tabular form in accordance with already decided classes

Question 5

Frequency distribution

Answer 5

It is a tabular arrangement of quantitative data into different classes prepared on the bases of magnitude along with corresponding class frequencies

Question 6

How to find range

Answer 6

Highest value-lowest value

Question 7

How to find desired number of classes

Answer 7

Range/Desired size of class.

Desired size is your choice or already given

Question 8

How to find relative frequency

Answer 8

Fr=f/€f

Always equal to 1

Question 9

Class boundaries

Answer 9

Technical term used to express overlapping classes

20-30,30-40..

Question 10

Class limits

Answer 10

Technical term used to express non-overlapping classes

20-29,30-39..

Question 11

Class midpoints

Answer 11

Mid way of given class limits or boundaries of a class is called mid point or CLASS MARK

Question 12

Class SIZE/INTERVAL

Answer 12

Gap between upper and lower class boundaries of the frequency distribution

Question 13

Types of diagrams/charts

Answer 13

Simple bar chart
Multiple bar chart
Component bar chart or sub-divided bar chart

Question 14

Histogram

Answer 14

Set of adjacent rectangles in which area of each rectangle is proportional to the corresponding class frequency and class size

Question 15

Historigram

Answer 15

Graph of time series