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
Harshit Singh , 3 Years ago
Grade 12th pass
