+0  
 
+3
311
4
avatar+1709 

 

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. 

 Jun 23, 2019
edited by tommarvoloriddle  Jun 23, 2019
 #1
avatar+111438 
+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!!!!

 

 

 

cool cool cool

 Jun 23, 2019
edited by CPhill  Jun 23, 2019
 #2
avatar+1709 
+10

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

3odds/4numbers.... lol

tommarvoloriddle  Jun 23, 2019
 #3
avatar+2856 
+4

You got lucky!

 Jun 24, 2019
 #4
avatar+1709 
+9

:I oh.... :(

tommarvoloriddle  Jun 24, 2019

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