Give the Numbers of Elements in the Regions Marked I $$| U | = 28 , | A | = 7 , | B | = 13 , | A \cap B | = 3$$

Short Answer

Give the numbers of elements in the regions marked I, II, III, and IV in the figure. $$| U | = 28 , | A | = 7 , | B | = 13 , | A \cap B | = 3$$ I: __________ elements II: __________ elements III: __________ elements IV: __________ elements