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In a survey of a TriDelta chapte with 54 member, 20 were taking mathematics, 35 were taking English, and 6 were taking both. Ho...Question
In a survey of a TriDelt chapter with 50 members, 21 were taking mathematics, 32 were taking English, and 7 were taking both. How many were not taking either of these subjects?
Answers
Reiny
N(M or E) = N(M) + N(E) - N( M and E) + other
50 = 21 + 32 - 7 + other
other = 4
or
If you know Venn diagrams, this is a real easy one to set up
50 = 21 + 32 - 7 + other
other = 4
or
If you know Venn diagrams, this is a real easy one to set up