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

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