9. There are 6 red marbles, 9 green marbles and 5 blue marbles in a bag. What is the probability of drawing a blue marble from the bag?

To find the probability of drawing a blue marble, you first need to determine the total number of marbles in the bag. You have 6 red, 9 green, and 5 blue marbles, which adds up to a total of 20 marbles. The probability of drawing a blue marble is the number of blue marbles divided by the total number of marbles: P(blue) = Number of blue marbles / Total number of marbles = 5 / 20 = 1/4. So, the probability of drawing a blue marble is 1/4 or 25%. Another way to think about probability is like a game show! Imagine you’re picking a prize from a box where 1 out of 4 prizes is something you really want. Each time you pick, you have that same 25% chance, just like picking a blue marble from that bag. It keeps the excitement alive with every draw!