In a harris poll, adults were asked if they are in favor of abolishing the penny. among the responses, 1241 answered "no," 459 answered "yes," and 352 had no opinion. what is the sample proportion of yes responses, and what notation is used to represent it? a. modifyingabove p with caret p=0.270. the symbol modifyingabove p with caret p is used to represent a sample proportion. b. p=0.224. the symbol p is used to represent a sample proportion. c. modifyingabove p with caret p=0.224. the symbol modifyingabove p with caret p is used to represent a sample proportion. d. p=0.270. the symbol p is used to represent a sample proportion.