Question

The probability of guessing the correct answer is x/2.if Probability of not guessing the correct answer is 2/3.Find X​

Answer 1

Answer:

Sum of both probabilities should be 1 then

2x+32=1

3x+4=6

3x=2

x=32.

Step-by-step explanation:

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Answer 2

Answer:

$\frac{x}{2} + \frac{2}{3} = 1 \\ \frac{3x + 4}{6 } = 1 \\ 3x + 4 = 6 \\ 3x = 6 - 4 \\ 3x = 2 \\ x = \frac{2}{3}$