Q145
Two unbiased coins are tossed. What is probability of getting at most one tail ?
A.
B.
C.
D.
Answer
Answer: Option D
Solution
Answer: Option D
Solution:
Total 4 cases = [HH, TT, TH, HT]Favourable cases = [HH, TH, HT]
Please note we need atmost one tail, not atleast one tail.
So probability =