Question

solve this for being brainlist ​

Answer 1

Answer:

x = 0.002

Step-by-step explanation:

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Answer 2

Answer:

The correct option is (c) :4

Given: The probability of guessing the correct answer to certain question= x/12

The probability of not guessing the correct answer for the same question=2/3

The sum of all the probabilities of all possible outcomes of experiment is 1.

P(Event) +1 (not an Event)=1

P(guessing the correct answer)+P(Not guessing the correct answer) =1

x/12+2/3=1

x/12-1-2/3

x/12-(3-2)/3

x/12=1/3

3x=12

x=12/3

x=4

Hence the value of x is 4.

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