Internet Marketing Diagram
A Marketing Survey of 500 people asked their fav color 380 Red, 292 Blue & 10 neither. How many liked both?
this is a Venn Diagram problem & i can’t find any answers on the internet with the same problem, can someone help me with the answers? thanks!
the question also asks how many liked Red but NOT blue
500 – 10 = 490, so 490 people liked red or blue or both.
380 + 292 = 672, which is more than the 490. This guarantees that some people like both.
672 – 490 = 182, this is the number of people who like both.
380 – 182 = 198 people who only like red
298 – 182 = 110 people who like blue only
Check the total of the following to be sure it adds to 500:
10 don’t like either
198 like red only
110 like blue only
182 like both
and you are done.
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