A box contains 8 marbles: 3 red, 4 blue, and 1 green. What is the probability of drawing out a blue marble?
To calculate the probability of drawing a blue marble, we need to know the total number of marbles in the box.
In this case, there are 8 marbles in total (3 red + 4 blue + 1 green).
Since there are 4 blue marbles in the box, the probability of drawing a blue marble is given by the ratio of the number of blue marbles to the total number of marbles:
Probability of drawing a blue marble = Number of blue marbles / Total number of marbles
Probability of drawing a blue marble = 4 / 8 = 1/2 = 0.5
Therefore, the probability of drawing a blue marble is 0.5.
To calculate the probability of drawing a blue marble, we need to know the total number of marbles and the number of blue marbles.
Total number of marbles = 8
Number of blue marbles = 4
The probability of drawing a blue marble can be calculated by dividing the number of blue marbles by the total number of marbles:
Probability of drawing a blue marble = number of blue marbles / total number of marbles.
So, the probability of drawing a blue marble is:
Probability of drawing a blue marble = 4 / 8
Simplifying, we find:
Probability of drawing a blue marble = 1/2 or 0.5
Therefore, the probability of drawing out a blue marble is 0.5 or 50%.
To find the probability of drawing a blue marble from the box, we need to determine the number of favorable outcomes (blue marbles) and the total number of possible outcomes (all the marbles in the box).
In this case, there are 4 blue marbles out of a total of 8 marbles in the box. Therefore, the probability of drawing a blue marble can be calculated as follows:
Probability of drawing a blue marble = Number of blue marbles / Total number of marbles
So, the probability of drawing a blue marble is 4/8, or 1/2.