RESEARCH METHODOLOGY

METHODS OF DATA ANALYSIS

MEASURES OF DISPERSION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If 10 is added to every value in a set of data, what will happen to the value of the median?
A
it will increase by 10
B
it will decrease by 10
C
it will stay the same
D
it will both increase and decrease
Explanation: 

Detailed explanation-1: -The correct answer is: it will increase by 10.

Detailed explanation-2: -Answer: If you add a constant to every value, the mean and median increase by the same constant.

Detailed explanation-3: -Therefore, in a set of numbers if one number is changed then there will be a new mean. Therefore, in a set of numbers if one number is changed then there will be a new median.

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