In a jar of marbles there are 8 red, 5 blue, and 3 green marbles. If a marble is randomly selected from the jar, what is the approximate probability of selecting a blue marble
To calculate the probability of selecting a blue marble, we need to divide the number of blue marbles by the total number of marbles in the jar.
Total number of marbles = 8 red + 5 blue + 3 green = 16 marbles
Number of blue marbles = 5
Probability of selecting a blue marble = Number of blue marbles / Total number of marbles = 5 / 16 ≈ 0.3125
Therefore, the approximate probability of selecting a blue marble from the jar is 0.3125 or 31.25%.