Give the Numbers of Elements in the Regions Marked I $$| U | = 22 , | A | = 15 , | B | = 7 , | A \cap B | = 0$$

Short Answer

Give the numbers of elements in the regions marked I, II, III, and IV in the figure. $$| U | = 22 , | A | = 15 , | B | = 7 , | A \cap B | = 0$$ I: __________ elements II: __________ elements III: __________ elements IV: __________ elements