content area top Part 1 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 Stretched Not stretched Injury 21 29 No injury 223 177 Calculate the marginal frequencies and sample size. Athlete has Result Stretched Not stretched Total Injury 21 29 50 No injury 223 177 400 Total 244 206 450 Part 2 (b) Find the expected frequency for each cell in the contingency table. Athlete has Result Stretched Not stretched Injury enter your response here enter your response here No injury enter your response here enter your response here (Round to two decimal places as needed.)