In a particular class, the probability of a student having blue eyes is 0.3, of having both blue eyes and blonde hair is 0.2, an
d of having neither blue eyes nor blonde hair is 0.5. What is the probability that a student in this class has blonde hair? Question options:
a) 0.5
b) 0.2
c) 0.3
d) 0.1
Let the blue-eyed student set is B Let the blonde student set is C<span> P(B)=0.3</span>
<span> P(BC)=0.2</span>
<span> P(B′C′)=0.5
Therefore, the answer is B. 0.2.
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