question_answer

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 starting point.

A)  \[^{11}{{C}_{6}}\,\,{{(0.2)}^{5}}\,\,{{(0.4)}^{3}}\]

B)  \[^{11}{{C}_{6}}\,\,{{(0.4)}^{6}}\,\,{{(0.6)}^{5}}\]

C)  \[^{11}{{C}_{6}}\,\,{{(0.6)}^{6}}\,\,{{(0.4)}^{5}}\]

D)  \[^{11}{{C}_{6}}\,{{(0.24)}^{7}}\]

E)  None of these