单选题
A random variable follows a continuous uniform distribution over 27 to 89. What is the probability of an outcome between 34 and 38?
A、
A. 0.0546.
B、
B. 0.0645.
C、
C. 0.0719.
【正确答案】
B
【答案解析】
P(34≤X≤38)=(38-34)/(89-27)=0.0645.
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