Homework Answers
1. First ECG clearly indicates, it is a CHB(Complete Heart Block) case. Because the rhythms are very irregular and there is no coordination between the P wave and Qrs wave.
It is a medical emergency where there is any blockage in the atrioventricular pathway.
If it persists then an artificial pacemaker is required.
2. In the second ECG, the P wave is completely absent and there is regular rhythm. So, clearly looks like a junctional rhythm.
If the pacemaker(SA node) of the heart is not inducing impulse then the impulse will be generated from the AV node it is called a junctional rhythm.
There may be many reasons like Myocardial infarction and electrolyte imbalance. An artificial pacemaker is required if there is no recovery.
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II) A consumer behavior is described by the equation Yt = Ct + St where Yt,...
II) A consumer behavior is described by the equation Yt = Ct + St where Yt, Ct and St stand respectively for the income, consumption and saving of the consumer at the time period t. We assume that Ct = {Yt+1 – 7 and St = 53 Y+ at any time period t. 1. Write down the difference equation of consumption of the consumer. 2 marks For the subsequent questions, we assume that the consumption of the consumer satisfies the...
II) A consumer behavior is described by the equation Yt = C+ + St where Yt,...
II) A consumer behavior is described by the equation Yt = C+ + St where Yt, Ct and St stand respectively for the income, consumption and saving of the consumer at the time period t. We assume that Ct = {Y{+1 – 7 and S4 = 55 Y4 at any time period t. 1. Write down the difference equation of consumption of the consumer. 2 marks For the subsequent questions, we assume that the consumption of the consumer satisfies the...
Qs. Random variables X and Y have Joins PDE 0 otherwise (a) What is Cov[X, YT (b) What is Var[X +...
Qs. Random variables X and Y have Joins PDE 0 otherwise (a) What is Cov[X, YT (b) What is Var[X +Y]? (c) Are X and Y independent? Prove your answer.
Qs. Random variables X and Y have Joins PDE 0 otherwise (a) What is Cov[X, YT (b) What is Var[X +Y]? (c) Are X and Y independent? Prove your answer.
II) A consumer behavior is described by the equation Y1 = C4 + Se where Yt,...
II) A consumer behavior is described by the equation Y1 = C4 + Se where Yt, C and S, stand respectively for the income, consumption and saving of the consumer at the time period t. We assume that C = Y+1 - 7 and S = Y, at any time period t. 1. Write down the difference equation of consumption of the consumer. 2 marks For the subsequent questions, we assume that the consumption of the consumer satisfies the relation:...
3. If the production function is given by y=k:13 where yt where yt is the output...
3. If the production function is given by y=k:13 where yt where yt is the output per worker and kt is the capital per worker. Suppose that the saving rate (s) equals the depreciation rate (8) plus 0.4. Find the steady state capital, output, investment, and consumption? Hint: all steady state values are functions of either (s) or (8)
an AR() pro yt =Α,yt-i + Χ.yt-z + Et , Nhu Σ£j us a white noise...
an AR() pro yt =Α,yt-i + Χ.yt-z + Et , Nhu Σ£j us a white noise process A a W ( ) ov what valuA 다 X,,XL 、att roaus weak!, station au (ii) Sele ct n where the ou丛 weak), stahon ang and plot
Consider two models for the variable Yt: MA: Yt = Bo + B1 Yt-1 + Ut...
Consider two models for the variable Yt: MA: Yt = Bo + B1 Yt-1 + Ut MB: Yt = A + A1 Yt-1 + A2 Xt + Vt While examining the prediction errors you obtain a Diebold-Mariano statistic of 1.78, what is your decision at the 10% significance level? A. Reject the null B. Fail to reject the null O C. Not enough information
Solve the following differential equation using variation of parameters. d yt) 2 dy() +7- + 10y() u(t) dt dt2 y(0) 0...
Solve the following differential equation using
variation of parameters.
d yt) 2 dy() +7- + 10y() u(t) dt dt2 y(0) 0, y'(0) = 3
d yt) 2 dy() +7- + 10y() u(t) dt dt2 y(0) 0, y'(0) = 3
2. In the following system, x(t) is the input and y(t) is the output. yt) fix(t)]...
2. In the following system, x(t) is the input and y(t) is the output. yt) fix(t)] for some f For each of the system, determine if they are linear. Justify your answers (providing counter- examples could be useful if the system is not linear) A. y(t) 4x(t) B. y(t) t2x(t) C. y(t) 2x(t) +3 D. y(t) 4x2(t) Fx) dt
Suppose a country’s has the following production function: yt = kt1/4, where k and y denote...
Suppose a country’s has the following production function: yt = kt1/4, where k and y denote capital and output respectively. The capital depreciation rate is fixed at ? = 0.1 each period, i.e., kt+1 = kt ? 0.1kt + skt1/4, where s > 0 represents the saving rate. (a) Calculate the steady state of capital and output: k? =?y? =? (b) Is this steady states stable? (c) Suppose there are only two usages of output, con- sumption and saving(investment), i.e.,...
II) A consumer behavior is described by the equation Yt = Ct + St where Yt, Ct and St stand respectively for the income, consumption and saving of the consumer at the time period t. We assume that Ct = {Yt+1 – 7 and St = 53 Y+ at any time period t. 1. Write down the difference equation of consumption of the consumer. 2 marks For the subsequent questions, we assume that the consumption of the consumer satisfies the...
II) A consumer behavior is described by the equation Yt = C+ + St where Yt, Ct and St stand respectively for the income, consumption and saving of the consumer at the time period t. We assume that Ct = {Y{+1 – 7 and S4 = 55 Y4 at any time period t. 1. Write down the difference equation of consumption of the consumer. 2 marks For the subsequent questions, we assume that the consumption of the consumer satisfies the...
Qs. Random variables X and Y have Joins PDE 0 otherwise (a) What is Cov[X, YT (b) What is Var[X +Y]? (c) Are X and Y independent? Prove your answer.
Qs. Random variables X and Y have Joins PDE 0 otherwise (a) What is Cov[X, YT (b) What is Var[X +Y]? (c) Are X and Y independent? Prove your answer.
II) A consumer behavior is described by the equation Y1 = C4 + Se where Yt, C and S, stand respectively for the income, consumption and saving of the consumer at the time period t. We assume that C = Y+1 - 7 and S = Y, at any time period t. 1. Write down the difference equation of consumption of the consumer. 2 marks For the subsequent questions, we assume that the consumption of the consumer satisfies the relation:...
3. If the production function is given by y=k:13 where yt where yt is the output per worker and kt is the capital per worker. Suppose that the saving rate (s) equals the depreciation rate (8) plus 0.4. Find the steady state capital, output, investment, and consumption? Hint: all steady state values are functions of either (s) or (8)
an AR() pro yt =Α,yt-i + Χ.yt-z + Et , Nhu Σ£j us a white noise process A a W ( ) ov what valuA 다 X,,XL 、att roaus weak!, station au (ii) Sele ct n where the ou丛 weak), stahon ang and plot
Consider two models for the variable Yt: MA: Yt = Bo + B1 Yt-1 + Ut MB: Yt = A + A1 Yt-1 + A2 Xt + Vt While examining the prediction errors you obtain a Diebold-Mariano statistic of 1.78, what is your decision at the 10% significance level? A. Reject the null B. Fail to reject the null O C. Not enough information
Solve the following differential equation using
variation of parameters.
d yt) 2 dy() +7- + 10y() u(t) dt dt2 y(0) 0, y'(0) = 3
d yt) 2 dy() +7- + 10y() u(t) dt dt2 y(0) 0, y'(0) = 3
2. In the following system, x(t) is the input and y(t) is the output. yt) fix(t)] for some f For each of the system, determine if they are linear. Justify your answers (providing counter- examples could be useful if the system is not linear) A. y(t) 4x(t) B. y(t) t2x(t) C. y(t) 2x(t) +3 D. y(t) 4x2(t) Fx) dt
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