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Two-digit numbers are formed from the di...

Two-digit numbers are formed from the digits 0,1,2,3 without repetition. Complete the following activity to find the probability that the number so formed is a prime number.

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The correct Answer is:
`S={10,12,13,20,21,23,30,31,32};" "thereforen(S)=9;`
`A={13,23,31}; therefore n(A)=3;P(A)=3/9=1/3.`
The sample space

Let A be the event that the number so formed is a prime number.
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