Answer:
![SD= 3.24](https://tex.z-dn.net/?f=SD%3D%203.24)
Step-by-step explanation:
Given
![Proportion, p = 30\%](https://tex.z-dn.net/?f=Proportion%2C%20p%20%3D%2030%5C%25)
![Population, n = 50](https://tex.z-dn.net/?f=Population%2C%20n%20%3D%2050)
Required
Determine the standard deviation
Standard Deviation (SD) is calculated as:
![SD= \sqrt{np(1-p)}](https://tex.z-dn.net/?f=SD%3D%20%5Csqrt%7Bnp%281-p%29%7D)
Substitute values for n and p
![SD= \sqrt{50 * 30\% * (1-30\%)}](https://tex.z-dn.net/?f=SD%3D%20%5Csqrt%7B50%20%2A%2030%5C%25%20%2A%20%281-30%5C%25%29%7D)
Convert percentage to decimals
![SD= \sqrt{50 * 0.30 * (1-0.30)}](https://tex.z-dn.net/?f=SD%3D%20%5Csqrt%7B50%20%2A%200.30%20%2A%20%281-0.30%29%7D)
![SD= \sqrt{50 * 0.30 * 0.70}](https://tex.z-dn.net/?f=SD%3D%20%5Csqrt%7B50%20%2A%200.30%20%2A%200.70%7D)
![SD= \sqrt{10.5}](https://tex.z-dn.net/?f=SD%3D%20%5Csqrt%7B10.5%7D)
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<em> approximated</em>
A set of parallel lines run infinitely without touching each other! Hope this helps!
A. because when you divide all of the groups, 17.699/11, 41.834/26, 54.706/34, they all get the same answer, 1.609, so they are all proportional, because the relationships stays the same
Hope this helps!
3.565565556... irrational
Pi irrational
0.0405... irrational
-17 is a rational number
.76 is a rational number
3.275 is also a rational number
The answer would be 96 square feet length
6 x (4)^2 = 96