okay so we have
5 blue marbles
6 green marbles
7 gold marbles
and 10 purples
we need to determine the probability that you would randomly pick 2 marbles without
replacement and they both be gold?
so we have 5+6+7+10
do you know what the total for that number is?
awesome
so out of the 28 for the first try we have
7/28
because the total of gold marbles is 7 out of 28
with me so far?
cool, so now we have 1 less gold marble
so out of the 27 marbles, we have 6 gold marbles and 27 marbles in total
so we have 6/27
with me so far?