A normal distribution has a standard deviation equal to $10$. What is the mean of this normal distribution if the probability of scoring below $x = 10$ is $0.5$?
2026-04-01 00:55:15.1775004915
Find the mean in a normal distribution
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In a probability distribution, if the probability of scoring below $x = 10$ is exactly $0.5$, then the median $= 10$.
In normal distribution, median $=$ mean, therefore, we can know that mean $= 10$.