Find the index of H = {0,3} in Z. 1 2 Find the left cosets of the subgroup 4Z in 2Z. A. {2Z} B. {4Z} C. {2Z, 2+2Z} D. {4Z, 2 + 4Z} What is the index of 4Z in 2Z?

Variable } Group 3.. .. d. Example 2 Group 2 Group 1- Group 3• Example 1 Group 2- I.. Group 1 10 20 30 50 60 40 The following is the dotplots of two examples of 3 groups each a) With regards to Sum of Squares Among Groups, SSA, which of the following is the correct statement? O A. SSA for Example 2 is larger than that of Example 1. O B. SSA for Example 1 is larger than that of Example 2. O C. SSA for Example 1 is about the same as that of Example 2. O D. There is not sufficeient infomation to evaluate SSA. b) With regards to Sum of Squares Within Groups, SSW, which of the following is the correct statement? O A. SSW for Example 1 is larger than that of Example 2. B. SSW for Example 1 is about the same as that of Example 2. OC. There is not sufficeient infomation to evaluate SSW. CCIW for Cvnmnle ? in loraor than that of Cunmnle 1

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The percentage of female high school graduates who enrolled in college is given in the table below. Year 1970 1980 1990 2000 2010 College Enrollment Percentages for Females 25.5 30.3 38.3 45.6 50.5 Let a represent time (in years) since 1970, and let y represent the corresponding percentage of female high school graduates who enrolled in college. Find the cubic regression model y = F(x) = ax³ + bx² + cx + d, = where a is rounded to 6 decimal places, b is rounded to 4 decimal places, c is rounded to 3 decimal places, and d is rounded to 1 decimal place.