Question

X is the number of heads in 100 flips of a coin. Each coin has Pr[H]=0.1

Find Pr[X >= 30]

Answer

Markov equation: Pr[x >= a] < E[X]/a

E[x] = 100*0.1 = 10 a = 30 Pr[x >= 30] < 10/30 = 1/3


Back to ECE302 Fall 2008 Prof. Sanghavi

Alumni Liaison

Ph.D. on Applied Mathematics in Aug 2007. Involved on applications of image super-resolution to electron microscopy

Francisco Blanco-Silva