Blood groups and number of students A(30 students) B (120 students) O(60 students) AB (90 students) . A student is chosen at random. What is the chance that his blood group is neither B nor O.
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Answer:
there is 3/5 chance
Step-by-step explanation:
sum of students=30+20+60+90
=300
Probability of blood group neither A nor O= (students of blood group A +students of blood group AB) /total number of students
=(30+90)/300
=120/300
=3/5
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