Athlete has Stretched Not stretched Use the contingency table to the right to calculate the marginal frequencies and find the expected frequency for each cell in the contingency table. Assume that the variables are independent. Result Injury No injury 19 28 200 192 (a) Calculate the marginal frequencies and sample size. Athlete has Result Stretched Not stretched Total Injury 19 28 47 No injury 200 192 392 Total 219 220 439 (b) Find the expected frequency for each cell in the contingency table. Athlete has Result Stretched Not stretched Injury No injury (Round to two decimal places as needed.)

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