Answer:
We have a strong negative relationship between the variables.
Step-by-step explanation:
Given two random variables X and Y, it is possible to calculate the covariance as Cov(X, Y) = E(XY)-E(X)E(Y). We have E(X)=5, E(Y)=6 and E(XY)=21. Therefore Cov(X,Y)=21-(5)(6)=21-30=-9. On the other hand, we know that the correlation of X and Y is the number defined by 
and because in this particular case we have V(X)=9 and V(Y)=10, we have 
= -0.9487. Therefore, we have a strong negative relationship between the variables.
Answer:
i think it 4 because it isnt a quadrilateral
Step-by-step explanation:
The first 3 common multiples of 5 and 15 are 15, 30, and 45. Remember that the number itself is also a multiple of any number, since you can multiply it by 1.
5 - 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100
15 - 15, 30, 45, 60, 75, 90, 105
Hope this helps!
The answer is x=.5/.333b-.333a
Answer:
242 pages.
Step-by-step explanation:
Let x represent number of pages that Claudia read last week.
We have been given that Claudia is reading a book that has 360 pages. She read some of the book last week. She plans to read 46 pages today. When she does,she will be 4/5 of the way through the book.
The number of total page left after reading 46 pages and x pages last week will be equal to 4/5 of 360.
We can represent this information in an equation as:
Let us solve for x.
Therefore, Claudia read 242 pages last week.
