There are 500 people in a survey to answer two yes-or-no questions, for the first question, 440 people has a "yes" answer, for t
he second question, 220 people has a "yes" answer, K is the number of people that has two "yes" answers, what’s the minimum value of K?
1 answer:
Answer:
Mininum value of K is 220
Step-by-step explanation:
400 people has a "yes" answer for the first question and 220 people has a "yes" answer for the second question
There is a possibility that 220 out of the 400 people that has a "yes" answer for the first question also has a "yes" for the second question
Therefore, the minimum number of people that has two "yes" answer (K) is 220
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