if a coin is tossed twise . what is the probability of getting ‘head’at last once
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Answer:
the probabilty = desired outcome/total no. of outcomes
Step-by-step explanation:
total outcomes = 4 (once head , once tails , both times heads , both times tails )
desired out come = 2 ( head , head )
probabilty = 2/4 =
== 1/2
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