Business Statistics And Research Methods - Study Mode

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[#976] The statistical study begins with collection of data and ends with

(A) organisation of data

(B) analysis of data

(C) interpretation of data

(D) None of these

Correct Answer

(C) interpretation of data

[#977] Consider the following statements: 1. Correlation analysis helps in determining the relationship between two or more variables it does not tell us anything about the cause and effect relationship 2. The ratio of explained variation to the 1 total variation is called the coefficient of correlation 3. Pearsonian coefficient always assumes linear relationship and is unduly effected by the extreme items Which of the above statements is/are correct?

(A) 2 alone

(B) 1 and 2

(C) 1 and 3

(D) 2 and 3

Correct Answer

(C) 1 and 3

[#978] Match the following. List-I (In Case of Correlation) List-II (Value of 'r') a. Perfect positive 1. 0 b. Perfect negative 2. +1 c. No correlation 3. -1

(A) a-1, b-2, c-3

(B) a-2, b-1, c-3

(C) a-3, b-1, c-2

(D) a-2, b-3, c-1

Correct Answer

(D) a-2, b-3, c-1

[#979] Sample proportion taken from a population is equal to

(A) X/n

(B) X 2 /n

(C) n/X

(D) None of these

Correct Answer

(A) X/n

[#980] One of the following is not a method of studying dispersion:

(A) Range

(B) Quartile deviation

(C) Mean deviation

(D) Standard deviation

Correct Answer

Range