Answer:
48.8 years
Step-by-step explanation:
A=p(1+r/n)^nt
A= total amount
p= initial investment (800_
r/n= annual interest rate over number of years( 2.25)
t= number of years compounded ( annually , biannually, quarterly etc.)
48.8 years
Answer:
ayuda te solo no eres tonto o si?
Step-by-step explanation:
I think the answer is 8
but im not 100% sure
Answer:
The co variance of the midterm and final exam scores is 58.76.
Step-by-step explanation:
The formula to compute the sample co variance is:
![Cov(x,y)=\frac{\sum(X-Mean\ of\ X)(Y-Mean\ of\ Y)}{n-1}](https://tex.z-dn.net/?f=Cov%28x%2Cy%29%3D%5Cfrac%7B%5Csum%28X-Mean%5C%20of%5C%20X%29%28Y-Mean%5C%20of%5C%20Y%29%7D%7Bn-1%7D)
The values are computed in the table below.
Compute the co variance as follows:
![Cov(x,y)=\frac{\sum(X-Mean\ of\ X)(Y-Mean\ of\ Y)}{n-1}\\=\frac{646.33}{12-1}\\ =58.76](https://tex.z-dn.net/?f=Cov%28x%2Cy%29%3D%5Cfrac%7B%5Csum%28X-Mean%5C%20of%5C%20X%29%28Y-Mean%5C%20of%5C%20Y%29%7D%7Bn-1%7D%5C%5C%3D%5Cfrac%7B646.33%7D%7B12-1%7D%5C%5C%20%3D58.76)
Thus, the co variance of the midterm and final exam scores is 58.76.