expected observed 516.42 533.00 382.58 356.00 283.42 305.00 209.96 189.00 155.54 165.00 115.23 130.00 85.36 81.00 63.24 50.00 46.85 48.00 34.71 29.00 chi-squared: 12.5438 probability: 0.2503