The probability density functions of normal distributions and t distributions are symmetric about their means.

Question

Quizplus · Accepted Answer

Both normal and t distributions are symmetric around their means, meaning that the probability of a value being above the mean is equal to the probability of it being below the mean. This is true regardless of the specific values of the parameters of the distribution (e.g. mean and standard deviation for normal distributions, degrees of freedom for t distributions).

The Probability Density Functions of Normal Distributions and T Distributions