RESEARCH METHODOLOGY

STATISTICAL TECHNIQUES AND TOOLS

MEASURE OF ARITHMETIC MEAN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
To calculate arithmetic mean in case of Inclusive series (under continuous series), we do not need to convert the series into exclusive series.
A
True
B
False
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -These kind of series are not useful in the case when the values are given in decimals. For example, if a value such as 4.5 is given then it cannot be included in the series. Thus, in such cases it becomes necessary to convert the inclusive series into exclusive series.

Detailed explanation-2: -An inclusive series includes the upper limit and the lower limit in the class interval. For example in the class interval 20-29 the frequencies(number of students) for 20 and 29 are included. In such a series, the upper limit of the class interval does not repeat itself as a lower limit of the next class interval.

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