these marbles are placed in a bag and two of them are randomly drawn what is the probability of drawing two pink marbles if the first one is placed back in the bag before the second draw the bag has 10 marbles.2 yellow.3 pink.5 blue

Answer 1

there are 10 marbles, with 3 pink

so the probability of pink is 3/10

for 2 pink draws (with replacement)
...probability = .3 * .3