school school Introvert 5 5 5 Extrovert 2 2 N 1 point The table below shows data from a study in which the experimenters randomly assigned subjects to three groups. The independent variable was the age of children and the dependent variable was the number of times the children expressed participation in a week. Wh is the within-group Sum of Squares (SS)? Number of Times Children Expressed Participation in Groups A, B. C Observation Group A (4-6 yrs) Group B (7-9 yrs) Group C (10-12 yrs) 1 3 2 7 2 IN 3 2 2 4 2 2 3 Mean SD O 2 O 22 1 point Consider the following results from a study with a 2 x 2 factorial design; select the result that best matches what is plotted