There are 5 red ,3 green and 4 blue marbles in a bag.what would be the chance of getting a red marble if the marble was pulled out of the bag without looking?
p(red) = 5/12
To find the chance of pulling out a red marble without looking, we need to calculate the probability.
Total number of marbles in the bag: 5 red + 3 green + 4 blue = 12 marbles
Probability of choosing a red marble = Number of red marbles / Total number of marbles
Probability of choosing a red marble = 5 red marbles / 12 marbles
Now we can simplify the fraction:
Probability of choosing a red marble = 5/12
So, the chance of getting a red marble if the marble was pulled out without looking is 5/12 or approximately 0.4167.
To find the chance of getting a red marble, we need to determine the probability. Probability is defined as the number of favorable outcomes divided by the number of possible outcomes.
In this case, we have a total of 5 red marbles out of the 12 marbles in the bag (5 red + 3 green + 4 blue). Therefore, the number of favorable outcomes is 5.
The number of possible outcomes is 12 since there are 12 marbles in total.
Now we can plug these values into the formula:
Probability = Number of favorable outcomes / Number of possible outcomes
Probability = 5 red marbles / 12 total marbles
Therefore, the chance of pulling out a red marble without looking is 5/12 or approximately 0.4167 (or 41.67%).