Adrunk person is walking on the road. with probability 0.6 he takes a step forward and with probability 0.4 he takes a step backward. after 10 steps, what is the probability that he is at his starting position? just the expression is sufficient.

Step-by-step explanation:

In order to be in the starting point after 10 steps the man must take five steps backward and five steps forward, no matter in which order.

For instance the sequence B-B-B-B-B-F-F-F-F-F yields the same the result of the sequence B-F-B-F-B-F-B-F-B-F. For that reason we can count the ways the man ends up at his starting point. We perform a pemutation with repeating elements and then we multiply that by the probability of taking 5 steps forward (0.6^5) and by the probability of taking 5 steps backward (0.4^5)

answer: 26

step-by-step explanation:

well, michelle wanted to measure the height of her school's flagpole she placed a mirror on the ground 48 feet from the flagpole then walk backwards until she was able to see the top of the pole in the mirror her eyes were 5 feet above the ground and she was 12 ft from the mirror using similar triangles find the height of the flagpole to the nearest tenth of a foot find the geometric mean of them pair of numbers. its easy math