The distribution of the sample proportion p = x/n is normal when n ≥ 30.

Name: The distribution of the sample proportion p = x/n is normal when n ≥ 30.
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The distribution of the sample proportion $p = \frac{x}{n}$ approaches normality as the sample size $n$ increases, according to the Central Limit Theorem, but the specific condition for it to be approximately normal is that both $np$ and $n(1-p)$ are greater than or equal to 10, not simply $n ≥ 30$.

The Distribution of the Sample Proportion P = X/n Is