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CBSE Class 10 Answered

the probability of guessing the correct answer to a certain question is x/12. If the probability of not guessing correct answer is 3/4 than find the value of x 
Asked by pradyumn908 | 28 Feb, 2018, 10:26: AM
answered-by-expert Expert Answer

P(Correct)=x/12

P(Not coreect)=3/4

Now, P(Not Correct) = 1 -  P(Correct)

3/4 = 1 - x/12

x/12 = 1 - 3/4

x/12 = 1/4

x = 3                                                                                           (-By Prabal)

Answered by Sneha shidid | 28 Feb, 2018, 11:25: AM
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