A bag contains 4 white marbles, 3 red marbles, 2 green marbles, and 1 yellow marble. what is the probability of reaching in the bag and randomly choosing a white marble?
there are 10 marbles of which 4 are white, so the
Prob(white) = 4/10 = 2/5
To calculate the probability of randomly selecting a white marble, you need to divide the number of favorable outcomes (white marbles) by the total number of possible outcomes (all marbles in the bag).
In this case, the number of favorable outcomes is 4 (the number of white marbles), and the total number of possible outcomes is the sum of all the marbles in the bag, which is 4 + 3 + 2 + 1 = 10.
Therefore, the probability of randomly selecting a white marble is:
4 (number of white marbles) / 10 (total number of marbles) = 0.4 or 40%.
So, the probability of randomly choosing a white marble is 0.4 or 40%.