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Operating-Systems
October 5, 2023
Computer-Organization
October 5, 2023
Operating-Systems
October 5, 2023
Computer-Organization
October 5, 2023

TIFR PHD CS & SS 2013

Question 4
A biased coin is tossed repeatedly. Assume that the outcomes of different tosses are independent and probability of heads is 2/3 in each toss. What is the probability of obtaining an even number of heads in 5 tosses, zero being treated as an even number?
A
121/243
B
122/243
C
124/243
D
125/243
E
128/243
Correct Answer: B

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