For the following Chi-square table, how many degrees of freedom should be used when calculating the p-value? Gender Phenotype O E O-E (O-E)2 (O-E)2/E Male Disease 99 101.5 -2.5 6.25 0.061576 WT 105 101.5 3.5 12.25 0.12096 Female Disease 0 0 0 0 0 WT 202 203 -1 1 0.004926 Total 406 406 19.5 0.187192 For the following Chi-square table, how many degrees of freedom should be used when calculating the p-value? Gender Phenotype O E O-E (O-E)2 (O-E)2/E Male Disease 99 101.5 -2.5 6.25 0.061576 WT 105 101.5 3.5 12.25 0.12096 Female Disease 0 0 0 0 0 WT 202 203 -1 1 0.004926 Total 406 406 19.5 0.187192 5 4 You do not need to know the degrees of freedom to calculate the p-value. 3 2