Quiz questions

11-8

  • 0:09:20: Q1. what is the capacity? ANS: max I(X;Y) over p(x)

  • 0:14:20: Q2. maximizing over what? ANS: p(x)

  • 0:22:17: Q3. Why I(M;Y^n) <= I(X^N,Y^N)? ANS: data processing inequality

  • 0:32:55: Q4 What is H(E|Y^N,M)? ANS: 0

  • 0:39:30: Q5 how many of you know exponential family distribution already? ANS: N/A

  • 1:09:21: Q6. what is RHS? ANS: E[T_i(X)]

  • 1:51:18: Q7 what is the updated lambda1? ANS: lambda1 + x

  • 2:12:13: Q8. What is the value of the integral? ANS: 1

  • 2:20:33: Q10. What is the value of the sum? ANS: 0

  • 2:24:20: Q11 what is a good estimator of the mean given X1…Xn? ANS: 1/n sumi (Xi)

  • 2:26:52: Q12. Can you find the fisher information for N(x;mu,sigma^2) (sigma fixed)? ANS: 1/sigma^2