Chi Squared Test. Its properties were first investigated by karl pearson in 1900. E each expected value.
χ 2 σ o e 2 e. So it was mentioned as pearson s chi squared test. A chi squared test symbolically represented as χ2 is basically a data analysis on the basis of observations of a random set of variables.
The chi square test is used to check how well the observed values for a given distribution fits with the distribution when the variables are independent.
A research scholar is interested in the relationship between the placement of students in the statistics department of a reputed university and their c g p a their final assessment score. Pearson s chi squared test is a statistical test applied to sets of categorical data to evaluate how likely it is that any observed difference between the sets arose by chance. Its properties were first investigated by karl pearson in 1900. σ means to sum up see sigma notation o each observed actual value.
