Math Is Fun Forum

mantastrike

Member

Registered: 2011-04-24

Posts: 64

Please provide a tree diagram for this.

A box contains 4 green balls and 4 white balls. One ball is drawn, it's colour is recorded, and it is NOT placed back in the box. Another ball is drawn and its colour recorded. What is the probability that both balls are the same colour?

I was trying to figure this out but my logic is not that good. Please help me! thanks!!

soroban

Member

Registered: 2007-03-09

Posts: 452

Re: Please provide a tree diagram for this.

              Start
                o
               / \
              /   \
          4/8/     \4/8
            /       \
           /         \
          G           W
         / \         / \
     3/7/   \4/7 4/7/   \3/7
       /     \     /     \
      G       W   G       W

.

mantastrike

Member

Registered: 2011-04-24

Posts: 64

Re: Please provide a tree diagram for this.

Thank You Very Much Man!