It is a value in an order set of measurement, that is calculated on the basis of percentage.

It is a circular diagram which is a circle (pie) divided by radii (like slices of a cake or pie)

If the curve is flat-topped when compared to the normal curve then it is a platy kurtic curve.

A number computed from a sample, representing a population parameter.

A group of phenomena having something in common.

A relationship between two variables such that when one increases the other also increases or when one decreases the other also decreases.

When a hypothesis is fall, the probability that a test will reject the null hypothesis is called Power.

A quantity measure of the chances of an outcome or outcomes of a random experiment.

An unbroken ( smooth ) curve which indicates the frequency distribution of a continuous random variable.

Error that occur as a result of sampling variability.

It is the selection of individuals from the population in such a way that each individual of the population has the same chance of being selected i.e. a sample so selected must be a true representative of its population. This process of sampling is called random sampling.

The difference between the largest and the smallest value of a set.

It is the area under a probability curve, in which a computed test statistics will lead to the acceptance of the null hypothesis .

Area under the probability (normal) curve in which a computed test statistics will lead to the rejection of the null hypothesis.

The estimation of the linear dependent of one or more independent variables on a dependent variable.

The ratio of a class frequency to the total frequency.

The expectation or prediction, that is to be tested by a researchers.