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单选题
The probability that Claire passes chemistry is 0.75, and the probability that she passes history is 0.88. If passing one course is independent of passing the other, what is the probability that she does not pass chemistry and passes history?
A
0.22
B
0.66
C
0.13
D
0.25
E
0.03
参考答案
参考解析
解析：
The probability that Claire does NOT pass chemistry is 1-0.75=0.25. The probability that she does NOT pass chemistry and she does pass history is then 0.25×0.88 =0.22.
The probability that Claire does NOT pass chemistry is 1-0.75=0.25. The probability that she does NOT pass chemistry and she does pass history is then 0.25×0.88 =0.22.
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