The correlation analysis refer to the techniques used measuring the closeness of the relationship between variables. "Correlation analysis deals with the association between two or more variables." 1. Positive and Negative Correlation: whether correlation is positive or negative would depend upon the direction of change. i.e if as one variable is increasing the other, on an average is also increasing or if one variable is decreasing the other, on an average is also decreasing, correlation said to be positive. If on the other hand one variable is increasing, the other is decreasing or vice versa it is said to be negative correlation. e.g 1. Positive correlation: X : 10 12 15 18 20 X: 80 70 60 40 30 Y...
The measurement of central value is also known as average. For example we often talk about the average height or average life of an Indian etc. Types of Average Arithmetic Mean, Harmonic Mean, Geometric Mean (1) Individual Observation (2) Discrete Series (3) Continuous series (a) Simple Arithmetic Mean Que. 1 Calculate the Arithmetic Mean-With Individual Series Que. 2 Calculate the Arithmetic Mean-With Discrete Series Que. 3. Calculate the Arithmetic Mean-With Continuous Series Geometric Mean Que 1 Que 2 Geometric Mean Discrete Series Geometric Mean Continuous Series Harmonic Mean Que 1 With Discrete Series Que 2 With Continuous Series = 30...