Need help in the following select the correct answer

The following data is to be used to construct a regression model: 5 7 4 15 12 9 9 12 26 16 13 The summations are as follows: Ex=52, Ey=84, Exy=850, Ex2 =540, ZY2 =1390 The value of the coefficient of determination is Select one: CA. 0.61 O B. 0.78 O C. 0.36 O D. 0.88The analysis of variance statistical methods are based on the assumption of O A. equal population variances O B. equal sample proportions O C. equal sample means O D. equal population proportions