An unbiased coin is tossed 5 times. Suppose that a variable X is assigned the value k when k consecutive heads are obtained for k = 3, 4, 5 otherwise X takes the value -1. Then the expected value of X is:
A) 18
B) −18
C) 316
D) −316

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Pawan Prajapati · Answer

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An unbiased coin is tossed 5 times. Suppose that a variable X is assigned the value k when k consecutive heads are obtained for k = 3, 4, 5 otherwise X takes the value -1. Then the expected value of X is: A) 18 B) −18 C) 316 D) −316

An unbiased coin is tossed 5 times. Suppose that a variable X is assigned the value k when k consecutive heads are obtained for k = 3, 4, 5 otherwise X takes the value -1. Then the expected value of X is:
A) 18
B) −18
C) 316
D) −316

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An unbiased coin is tossed 5 times. Suppose that a variable X is assigned the value k when k consecutive heads are obtained for k = 3, 4, 5 otherwise X takes the value -1. Then the expected value of X is: A) 18 B) −18 C) 316 D) −316

An unbiased coin is tossed 5 times. Suppose that a variable X is assigned the value k when k consecutive heads are obtained for k = 3, 4, 5 otherwise X takes the value -1. Then the expected value of X is: A) 18 B) −18 C) 316 D) −316

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An unbiased coin is tossed 5 times. Suppose that a variable X is assigned the value k when k consecutive heads are obtained for k = 3, 4, 5 otherwise X takes the value -1. Then the expected value of X is:
A) 18
B) −18
C) 316
D) −316