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The figure shows a normal distribution with mean m and standard deviation d, including approximate percents of the distribution corresponding to the six regions shown. The distribution of the random variable $$Y$$ is normal with mean 10 and standard deviation 0.5. Which of the following is closest to the value of $$P(9 \lt Y \lt 10.5)$$
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5.3.2 正态分布
5.3.2 正态分布
以上解析由 考满分老师提供。