Drinks

In a country, 65% of people drink coffee, 50% drink tea 25% drink both. What is the probability that a person chosen at random will drink neither tea nor coffee?

Correct answer:

p =  10 %

Step-by-step explanation:

pA=65 % pB=50 % pAB=25 %  p1=pApAB=6525=40 %  p2=pBpAB=5025=25 %  p3=p(AB)=p1+p2+p(AB) p3=p1+p2+pAB=40+25+25=90 %  p=100p3=10090=10%



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Showing 2 comments:
Shayan
it helps me lot!

Habana
do you give long problems





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