Question

A man takes a step forward with probability 0.4 and backward with probability 0.6. Find the probability that at the end of eleven steps he is one step away from the initial position?

Answer 1

@Mehek14

Answer 2

have you studied bionomial approximation?

Answer 3

@Daniellelovee

Answer 4

yes

Answer 5

@camerondoherty

Answer 6

@kropot72

Answer 7

@hartnn

Answer 8

Use the binomial distribution to find the probability that 6 of the eleven steps will be forward. Then use the binomial distribution to find the probability that 6 of the eleven steps will be backward. Finally add these two values of probability to find the probability that at the end of eleven steps he is one step away from the initial position.