Pearson Chi-Square Calculator for 2×2 Contingency Table (No Yates Correction)
Enter the observed frequencies (counts) for your 2×2 contingency table. This calculator reports the uncorrected Pearson chi-square statistic.
Observed Frequencies
Enter the count for each cell of your contingency table. Example: if 30 men voted Yes, enter 30 in that cell.
Category 1
Category 2
Group 1
Group 2
All values must be non-negative whole numbers (counts, not percentages)
