QuestionDetails: Can you please explain the answer with steps and explainme. 27)

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QuestionDetails: Can you please explain the answer with steps and explainme.
27) Aperson with $2 in her pocket bets $1, even money, on theflip a coin, and she continues to bet $1 as long as she has anymoney. Draw a tree diagram to show that various things that canhappen during the first four flips of the coin. After the fourthflip of the coin, in how many of the cases will she be a) Exactly even b) Exactly $2 ahead QuestionDetails: 27) Aperson with $2 in her pocket bets $1, even money, on theflip a coin, and she continues to bet $1 as long as she has anymoney. Draw a tree diagram to show that various things that canhappen during the first four flips of the coin. After the fourthflip of the coin, in how many of the cases will she be a) Exactly even b) Exactly $2 ahead QuestionDetails: Can you please explain the answer with steps and explainme.
27) Aperson with $2 in her pocket bets $1, even money, on theflip a coin, and she continues to bet $1 as long as she has anymoney. Draw a tree diagram to show that various things that canhappen during the first four flips of the coin. After the fourthflip of the coin, in how many of the cases will she be a) Exactly even b) Exactly $2 ahead

Explanation / Answer

You need to extend it one more time to get to four flips. Justfollow the same method i used. For part A look for (2) For part B look for (4) 2 - -Win - - -3 -----Win -----4-----Win-------5   -                     -                          --Lose ----3   -                     ---Lose -----2------Win -----3   -                                                ----Lose ----1    -    ---Lose --- 1-----Win -----2 ----Win ------ 3                           -                     ---Lose------1                           --- Lose ---0 (STOP)

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