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The following table is based on samples of patients diagnosed with gastric cancer, peptic ulcer, and controls from the same health maintenance operation.

From the following table, test whether there are significant differences in blood type among the three groups.

Blood Type	Gastric Cancer	Peptic Ulcer	Controls
O	400	1000	3000
A	400	700	2500
B	75	150	500
AB	25	50	200
Total	900	1900	6200

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92206701

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