Attribute 
: 
A qualitative characteristic of an individual which can be expressed numerically is called an attribute.

Alternative Hypothesis 
: 
It is a researcher's hypothesis. 
Bar chart 
: 
It is a graphic display of how the data falls into different categories or groups.

Bar chart 
: 
It is a graphic display of how the data falls into different categories or groups. 
Bias 
: 
Overestimation of a true value. 
BiModel 
: 
A frequency curve having two scores of highest frequency of equal values. 
Binomial 
: 
An event having only two possible outcomes, say success and failure. 
Bivariate 
: 
Involving two variables. 
Box & Whiskers Central [Box Plot ] 
: 
It is a graphical display of data pointing out the symmetry and the tendency 
Central Tendency [Center of location] 
: 
A single value which can be considered as typical or representative of a set of observations and around which the observations can be considered as centered. 
Chi square 
: 
It is a nonparametric test used to test the independence of two nominal variables. 
Class frequency 
: 
The number of observations that fall into each class. 
Class Intervals 
: 
Groups containing the frequency distributions. 
Confidence Interval 
: 
The limits or the range of values, that the population parameter could possess, at a given level of significance. 
Continuous Variable 
: 
A variate capable of assuming all the numerical values in a given range. 
Correlation Coefficient 
: 
It is the measure of the degree, or extent to which, two variables possess a linear relationship. 
Critical Region 
: 
The region in which, a Zscore lies and which leads a researcher to reject the setup null hypothesis. 
Critical value 
: 
The computed value of a statistic which is used as a threshold to determine whether the nullhypothesis will be rejected. 