If a standardized residual for a cell is large and positive, what can we conclude?

The standardized residual for a large and positive cell means that there are many more observations in the cell than expected. As a rule, if the residual is greater than two, the observed frequency is greater than the expected frequency. Therefore, the standardized residual is a measure of strength between observed and expected values when comparing the cells. So, it is easier to see which cells are contributing the most to the value, and which are contributing the least.