Answer: There is 10,000 ug in 1 cg
The silent letter is K in the word know.
The equation of the linear regression is ![\^ y = 3.58125\^x + 202.575](https://tex.z-dn.net/?f=%5C%5E%20y%20%3D%203.58125%5C%5Ex%20%2B%20202.575)
<h3>Graphing tool</h3>
To determine the line of best fit, we make use of a graphing tool
See attachment for the graph of the line of best fit
<h3>The equation</h3>
From the graphing tool, we have the following calculation summary
-
Sum of X = 440
- Sum of Y = 3601.5
- Mean X = 44
- Mean Y = 360.15
- Sum of squares (SSX) = 1440
- Sum of products (SP) = 5157
The regression Equation is then represented as:
![\^y = b\^x + a](https://tex.z-dn.net/?f=%5C%5Ey%20%3D%20b%5C%5Ex%20%2B%20a)
Where:
and ![a = \bar y - b \times \bar x](https://tex.z-dn.net/?f=a%20%3D%20%5Cbar%20y%20-%20b%20%5Ctimes%20%5Cbar%20x)
![b = \frac{5157}{1440}](https://tex.z-dn.net/?f=b%20%3D%20%5Cfrac%7B5157%7D%7B1440%7D)
Also, we have:
![a = \bar y - b \times \bar x](https://tex.z-dn.net/?f=a%20%3D%20%5Cbar%20y%20-%20b%20%5Ctimes%20%5Cbar%20x)
![a= 360.15 - (3.58\times 44)](https://tex.z-dn.net/?f=a%3D%20360.15%20-%20%283.58%5Ctimes%2044%29)
So, the linear regression equation is:
![\^ y = 3.58125\^x + 202.575](https://tex.z-dn.net/?f=%5C%5E%20y%20%3D%203.58125%5C%5Ex%20%2B%20202.575)
Read more about linear regression at:
brainly.com/question/17844286