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How do you find degrees of freedom for a chi-squared test?
The degrees of freedom for a chi-squarded test is k-1, where k equals the number of categories for the test.
Which is a perfect square number 10 50 1600 124 or 200?
1600 Why r u trying to cheat at the iq test?
How can you determine whether two variables x and y for a real life situation are correlated?
You calculate a correlation coefficient and test to see if it is statistically different from 0.
When can you not invert a matrix?
If it is not a square matrix. You cannot invert a square matrix if it is singular. That means that at least one of the rows of the matrix can be expressed as a linear combination of the other rows. A simple test is that a matrix cannot be inverted if its determinant is zero.
The square root of -1 is an number?
The Square root of -1 is an _________ number Possible answers: imaginary, infinite, indefinite *You may be taking the same [url=http://intelligence-test.net/part_4/?m=3]online test[/url] that I am :D * * * * * And the answer is ... IMAGINARY!
