3/4 is my answer, and I came here to check if it was correct...

EDIT:

If it helps (text version):

The digits 2,3,5, and 7 are arranged randomly to form a four-digit number. What is the probability that the number is odd? Express your answer as a common fraction.

tommarvoloriddle Jun 23, 2019

#1**+3 **

The number of possible arrangements of the digits is 4! = 24

Let's look at those which form even numbers.....this occurs when the "2" appears at the end of a number

So....in that case.....the other digits can be arranged in 3! = 6 ways

So.....there are 6 even numbers and 18 odd

So

18 / 24 = 3 / 4 and you are correct!!!!

CPhill Jun 23, 2019

#2**+7 **

YASSSSS I think I did it an wrong way though...I went like 4 numbers, 3 odds...

3odds/4numbers.... lol

tommarvoloriddle
Jun 23, 2019