Sets
3 marks · NormalThe Venn diagram shows sets E and F in a universal set S.
(a)[1 mark]
What name is given to the overlapping part of E and F?
(b)[1 mark]
Write the symbol or notation for the region that is inside E or inside F or both.
(c)[1 mark]
Write in set notation the region outside both E and F.
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Show answer
(a) Intersection
(b) E \cup F
(c) (E \cup F)'
Show mark scheme and worked solution
Marking points
B1 (a) · 1 mark · Gives 'intersection'.
B1 (b) · 1 mark · Gives correct symbol: E ∪ F.
B1 (c) · 1 mark · Gives correct complement notation: (E ∪ F)'.
Worked solution
(a) The overlapping part is called the intersection.
(b) Inside E or F or both is denoted E ∪ F.
(c) Outside both E and F is (E ∪ F)'.