11 1. E(u) 2. E(W) 3. Var(u)
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter6: Linear Systems
Section6.2: Guassian Elimination And Matrix Methods
Problem 84E: Explain the differences between Gaussian elimination and Gauss-Jordan elimination.
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Hello there plz solve this math question
![Example 21: If E(x) = 3, E(y) = 5), V(X) = 8, V(Y) = 12, Cov(x, y) = 1, And
if u = 2x -y, w = 3x - 2y Find
1. E(u)
2. E(W)
3. Var(u)
4. Var(w)
5. E(x²)
6. E(y²)
7. E(xy).
Solution:](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd944a7a5-2ae4-45d0-9e06-42347df8ac9e%2F70eaea9d-9caf-4462-a3a1-6432fbef91d1%2Fsvcts1p_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Example 21: If E(x) = 3, E(y) = 5), V(X) = 8, V(Y) = 12, Cov(x, y) = 1, And
if u = 2x -y, w = 3x - 2y Find
1. E(u)
2. E(W)
3. Var(u)
4. Var(w)
5. E(x²)
6. E(y²)
7. E(xy).
Solution:
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