Chi-Square Points Observed-Expected2Expected. TotalcolumN Total row A college instructor is interested in whether assigning mandatory homework affects students grades. Chi is a Greek symbol that looks like the letter x as you can see in the chi square formula image on screen now.
Now lets calculate the values for adding into the chi-square statistic.
Expected frequency 20 250 total customers 50. Calculate this formula for each cell one at a time. Ch 2 O E 2 E. X 2 observed value - expected value 2 expected value.
