Grid-in EC 7

In corn plants, Zea mays, purple kernels are dominant to yellow kernels, and smooth kernels are dominant to wrinkled kernels. In a dihybrid cross where a 9:3:3:1 ratio is expected, the following data were collected:

purple and smooth: 223

purple and wrinkled: 84

yellow and smooth: 89

yellow and wrinkled: 33

Calculate the chi square value for the data. Round to the nearest hundredth.