Tuesday, 20 March 2012

www.UPSCPORTAL.com : "Today's Important News: 20 March 2012" plus 3 more

Today's Important News: 20 March 2012
(IGP) IAS Pre Paper - 2: GS - Basic Numeracy - Statistics (MCQ -24)
(IGP) IAS Pre Paper - 2: GS - Basic Numeracy - Statistics
(Test Series) Answers & Explanations of GS Paper -1 of Our Postal Test Series Programme: Test -2

Today's Important News: 20 March 2012

Posted: 20 Mar 2012 04:27 AM PDT

Today's Important News (20-03-2012)

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(IGP) IAS Pre Paper - 2: GS - Basic Numeracy - Statistics (MCQ -24)

Posted: 20 Mar 2012 12:56 AM PDT

Basic Numeracy
Statistics (MCQ -24)

Directions (Q. Nos. 1-5) Consider the table given below

Class-interval (Age in years)	Number of employees frequency	Cumulative frequency
25-29	5	5
30-34	15	20
35-39	22	42
40-44	19	61
45-49	9	70

From the above table find the following.

1. Class size is
(a) 4.5
(b) 5
(c) 4
(d) None of these

(IGP) IAS Pre Paper - 2: GS - Basic Numeracy - Statistics

Posted: 20 Mar 2012 12:52 AM PDT

Basic Numeracy
Statistics

The branch of Mathematics which deals with collection, classification and interpretation of data is called statistics.

When used in the singular sense, statistics refers to the subject as a whole of science of statistical methods embodying the theory and techniques. When it is used in the plural sense, statistics refers to the data itself (ie, numerical facts collected in a systematic manner with some definite purpose in view, in any field of enquiry).