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1. |
A coin is successively tossed two times. Find the probability of getting ? (1) exactly one head (2)at least one head |
A. | 1/2 , 3/4 |
B. | 2/3, 1/4 |
C. | 1/4, 4/5 |
D. | 1/2, 2/3 |
Answer» B. 2/3, 1/4 | |