Chi-Square Genetics Calculator

Test if observed genetic ratios match expected Mendelian ratios using the chi-square goodness of fit test.

Input Data

Chi-Square Formula

X² = Σ [(O - E)² / E]

Chi-Square Result

0.4700
X² value
Degrees of Freedom
3
Critical Value
7.815

Statistical Decision

Fail to Reject Null Hypothesis
Observed data fits expected ratios

Component Breakdown

CategoryOE(O-E)²/E
Round Yellow315312.750.0162
Wrinkled Yellow101104.250.1013
Round Green108104.250.1349
Wrinkled Green3234.750.2176
Total556556.000.4700