SOLUTION: the chances that a student passes the promotional examinations at first sitting in physics , chemistry and biology are respectively 0.4,0.5 and 0.1. what is the probability that

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Question 1074026: the chances that a student passes the promotional examinations at first sitting in physics , chemistry and biology are respectively 0.4,0.5 and 0.1. what is the probability that the student fails
a) only one subject
b) at least one subject
Answer by Fombitz(32388) About Me  (Show Source):
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Duplicate Question
See Answer 689297