There are two random variables X and Y. X has a mean of 3.82 and standard deviation of 2.12. Y has a mean of 5.13 and standard deviation of 6.24. The correlation between them is -0.38.
Calculate the standard deviation of (X+Y).
Calculate the mean and standard deviation for (0.7×X + 0.3×Y).
For a custom-written paper, place your order now!
What We Offer
• On-time delivery guarantee
• PhD-level professionals
• Automatic plagiarism check
• 100% Privacy and Confidentiality
• High Quality custom-written papers
