Answer:
where 
= 2
Step-by-step explanation:
512/-8 = -64
difference of n = 3
![\sqrt[3]{64} = 4](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B64%7D%20%3D%204)
where = 2
Answer:
28
Step-by-step explanation:
So this means to replace the r you see in 4r^2-8 with 3.
Let's do that:
4(3)^2-8
Now to simplify this just use pemdas or a calculator:
4(9)-8 since 3^2 means 3*3=9
36-8
28
Given data
1. The mean
2. The median
3. The sample standard deviation
![\begin{gathered} SD\text{ =}\sqrt[]{\frac{\sum f|x-\bar{x}|}{\sum f}} \\ \bar{x}=7.6515 \\ SD=\sqrt[]{4.8028} \\ SD=2.1915 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20SD%5Ctext%7B%20%3D%7D%5Csqrt%5B%5D%7B%5Cfrac%7B%5Csum%20f%7Cx-%5Cbar%7Bx%7D%7C%7D%7B%5Csum%20f%7D%7D%20%5C%5C%20%5Cbar%7Bx%7D%3D7.6515%20%5C%5C%20SD%3D%5Csqrt%5B%5D%7B4.8028%7D%20%5C%5C%20SD%3D2.1915%20%5Cend%7Bgathered%7D)
I cant help you on this if there is no coefficients.
Error=100 calculated/actual
error=100 (175-97.5) / 97.5
error=100 (77.5) / 97.5
error=7750 / 97.5
error=77500 / 975
error=3100 / 39
error=79.5% <-- Estimated
