4 Amandeep is in the middle of a bridge of infinite length. He takes the unit step to the right with probat ) and to the left with probability 0.37. Assume that the movements are independent of each other. Hint: Consider the random variable X, associated with the ith step defined as: if the step of Amandeep is towards the right X₁= -1 if the step of Amandeep is towards the left What is the expected distance between the starting point and end point of Amandeep after 8 steps? O-2.08 O -0.26 O 0.26 O2.08

A First Course in Probability (10th Edition)
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Author:Sheldon Ross
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4 Amandeep is in the middle of a bridge of infinite length. He takes the unit step to the right with probabilita
) and to the left with probability 0.37. Assume that the movements are independent of each other.
Hint: Consider the random variable X, associated with the ith step defined as:
1 if the step of Amandeep is towards the right
X₁=
-1 if the step of Amandeep is towards the left
What is the expected distance between the starting point and end point of Amandeep after 8 steps?
O-2.08
O-0.26
O 0.26
O 2.08
Transcribed Image Text:4 Amandeep is in the middle of a bridge of infinite length. He takes the unit step to the right with probabilita ) and to the left with probability 0.37. Assume that the movements are independent of each other. Hint: Consider the random variable X, associated with the ith step defined as: 1 if the step of Amandeep is towards the right X₁= -1 if the step of Amandeep is towards the left What is the expected distance between the starting point and end point of Amandeep after 8 steps? O-2.08 O-0.26 O 0.26 O 2.08
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