what is the value of x²​

Sagot :

Answer:

x squared is a notation that is used to represent the expression x×x x × x . i.e., x squared equals x multiplied by itself.

Answer:

 A chi-square (χ2) statistic is a measure of the difference between the observed and expected frequencies of the outcomes of a set of events or variables.

Explanation:

χ2 depends on the size of the difference between actual and observed values, the degrees of freedom, and the samples size.