Question

There is a bag filled with 4 blue and 5 red marbles.

A marble is taken at random from the bag, the colour is noted and then it is not replaced.
Another marble is taken at random.
What is the probability of getting exactly 1 red?

Answer 1

im not sure but this is just a guess (please keep it in mind)

Explanation:

4+5= 9 marbles all together

9-1= 8

1 in 8? or 1 in 9

this is becuase we dont know if the one that was taken out randomly first wasnt a red or not but then i could be wrong and the fact if it was red or blue in the first place might not even matter. it really depends.