The probability of guessing the correct answer to a certain question is x/2 . if the probability of not getting the correct answer to the questions is 2/3.then find "x"
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probability of getting correct ans + probability of not getting correct ans =1
so ,
x/2 + 2/3=1
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3x+4=6
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3x=2
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x=2/3
so the value of x is 2/3
so ,
x/2 + 2/3=1
》
》
3x+4=6
》
3x=2
》
x=2/3
so the value of x is 2/3
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