Answer:
18/625
Step-by-step explanation:
We have 7 red, 9 green, 3 yellow and 6 blue chips for a total of
25 chips
We first draw a yellow chip
P(yellow) = number of yellow / total = 3/25
Then we put the chip back
We have 7 red, 9 green, 3 yellow and 6 blue chips for a total of
25 chips
P ( blue) = number of blue/ total = 6/25
P(yellow, replace, blue) = P(yellow)* P(blue) = 3/25*6/25 = 18/625