Chi square

Data
Real frequencies A B C D Sum S1 325 412 398 509 1644 S2 9 13 6 10 38 Sum 334 425 404 519 1682	Real relat. frequencies A B C D Sum S1 19.32% 24.49% 23.66% 30.26% 97.74% S2 0.54% 0.77% 0.36% 0.59% 2.26% Sum 19.86% 25.27% 24.02% 30.86% 100%
Theoretical frequencies (H0) 326.45 415.4 394.87 507.27 7.55 9.6 9.13 11.73	Theoretical relat. frequencies (H0) 19.41% 24.7% 23.48% 30.16% 0.45% 0.57% 0.54% 0.7%