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?
To find the probability of drawing a red marble without looking, we first need to determine the total number of marbles in the bag. In this case, there are 5 red, 3 green, and 4 blue marbles, which gives us a total of 12 marbles.
The probability of drawing a red marble can be calculated by dividing the number of red marbles by the total number of marbles. Therefore, the probability of getting a red marble is:
Probability of drawing a red marble = Number of red marbles / Total number of marbles
= 5 / 12
= 5/12
So, the chance of getting a red marble if the marble is pulled out of the bag without looking is 5/12 or approximately 0.4167 (rounded to four decimal places).