If we add a constant 3 to each observation of a data set then find the mean: A. Increased by 3 B. Decreased by 3 C. No effect D. None of these 0 0 votes Article Rating Subscribe Login Notify of new follow-up comments new replies to my comments Label {} [+] Name* Email* Label {} [+] Name* Email* 0 Comments Oldest Newest Most Voted Inline Feedbacks View all comments