The height of American adult women is distributed almost exactly as a normal distribution. Ihe mean with a standard deviation of $2$ inches. Imagine that all possible random samples of size $n=25$ are taken from the population of American adult women's heights. The means from each sample would then be graphed to form the sampling distribution of the sample mean. The standard deviation of this sampling distribution is:

$75$

$3$

$\mathrm{.}4$

$2$

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