Question

What is probability of making an even number of 4 digit using 1234

Answer 1

P(E) = $\frac{Number of outcomes}{Total number of outcomes}$

P(getting 4) = $\frac{1}{4}$

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Answer 2

Answer:

Probability of even number of 4 digit using 1 , 2 , 3 , 4 digits is 1/2.

Step-by-step explanation:

To find: Probability of even number of 4 digit using 1 , 2 , 3 , 4 digits.

Total 4 Digit Numbers formed using given digits = $^4P_4=4!=24$

Number of 4 digit even numbers formed using given digits = 3 × 2 × 1 × 2 = 12

$Probabilty=\frac{Number\:of\:Favorable\:outcome}{Total\:number\:of\:outcome}$

$Probability=\frac{12}{24}=\frac{1}{2}$

Therefore, Probability of even number of 4 digit using 1 , 2 , 3 , 4 digits is 1/2.