Question

check here for instructional material to complete this problem. evaluate $sigma=sqrt{npq}$, where $q = 1 - p$, for $n = 200$ and $p = 0.25$. $sigma=square$ (simplify your answer. type an integer or decimal rounded to one decimal place as needed.)

Explanation:

Step1: Calculate the value of q.

Since $q = 1 - p$ and $p=0.25$, then $q=1 - 0.25=0.75$.

Step2: Calculate the value of npq.

Given $n = 200$, $p = 0.25$, $q = 0.75$, then $npq=200\times0.25\times0.75 = 200\times0.1875=37.5$.

Step3: Calculate the value of σ.

$\sigma=\sqrt{npq}=\sqrt{37.5}\approx6.1$.

Answer:

$6.1$