RESEARCH METHODOLOGY

METHODS OF DATA ANALYSIS

ANALYSIS OF QUANTITATIVE DATA AND IT PRESENTATION WITH TABLES GRAPHS ETC

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The ____ describes how similar or varied the set of observed values are for a particular data item.
A
central tendency
B
range
C
spread
D
quartile
Explanation: 

Detailed explanation-1: -Definition. Measures of spread describe how similar or varied the set of observed values are for a particular variable (data item). Measures of spread include the range, quartiles and the interquartile range, variance and standard deviation.

Detailed explanation-2: -In statistics, variance measures variability from the average or mean. It is calculated by taking the differences between each number in the data set and the mean, then squaring the differences to make them positive, and finally dividing the sum of the squares by the number of values in the data set.

Detailed explanation-3: -1: Mean: The Average. The term central tendency relates to the way in which quantitative data tend to cluster around some value.

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