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Case Study Case Study 1 . Given the following data: Variance of X = 9 Regression equations: 4 X - 5 Y + 3 3

Case Study
Case Study 1.
Given the following data:
Variance of X=9
Regression equations:
4X-5Y+33=0
20X-9Y-107=0
Case study 2. Given the differential equation dy/dx =(x-y), y(0)=1. Answer the following question based on the problem.
Question 1: Based on case study 1- Coefficient of correlation between X and Y is ______
Question 2: Based on case study 1- Mean Value of X is ____
Question 3: Based on case study 1- Mean Value of Y is ____
Question 4: Based on case study 1- Standard deviation of X is ____
Question 5: Based on case study 1- Standard deviation of Y is ____
Question 6: Based on case study 2- initial value for x given in the problem is ______
Question 7: Based on case study 2- taking the step size h =0.2, first approximate value of y at x=0.2 is _______
Question 8: Based on case study 2- value of y(0.2) correct upto 3 decimal places can be achived in ______ number of approximations.
Question 9: Based on case study 2- value of y(0.2) correct upto 3 decimal places is approximately ___________
Question 10: The process of getting successive approximations in Picard's method stops when desired degree of accuracy till k^th decimal place is arrived i.e. for two successive approximations (say) y^(n) and y^(n-1), absolute value of y^(n-1)- y^(n) is less than or equal to _________

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