why would a chi-square test use the expected count or standard deviation? what is standard deviation for chi why does chi square use the square root as standard deviation? why does chi square testing use the square root of the expected count as standard deviation of each of the normal distributions? why does chi square testing use expected counts as the standard deviation how is the standard deviation calculated for chi square testing why is it important to use standard deviations why does chi square test use expected count why do chi square tests use standard deviations instead of expected counts? why do you use the standard deviation in chi square testing why is chi square used in math does chi square use expected or standard what is the standard deviation for chi square how many as in chi square what is variance in chi square testing why does chi square test use expected counts? why is chi square test use expected count as standard deviation why does chi square test use the expected count? why does the chi-square test use the expected and standard deviations of each normal distribution? how does chi square testing work