the playing pieces in a bag contain 30 red chips, 20 blue chips and 15 yellow chips. What is the probability it will be yellow if chosen at random?
15/(30+20+15) = ?
To find the probability of choosing a yellow chip at random, we need to know the total number of chips in the bag.
Total number of chips in the bag = 30 (red chips) + 20 (blue chips) + 15 (yellow chips) = 65 chips
The probability of choosing a yellow chip would be the number of favorable outcomes (yellow chips) divided by the total number of possible outcomes (total number of chips).
So, the probability of choosing a yellow chip at random is:
Probability of yellow = Number of yellow chips / Total number of chips
Probability of yellow = 15 / 65
Simplifying this fraction, we get:
Probability of yellow = 3 / 13
Therefore, the probability of choosing a yellow chip at random from the bag is 3/13 or approximately 0.23.
To find the probability of choosing a yellow chip at random, we need to compare the number of yellow chips to the total number of chips in the bag.
First, we calculate the total number of chips in the bag by adding the number of red chips, blue chips, and yellow chips: 30 + 20 + 15 = 65
Then, we determine the probability of choosing a yellow chip by dividing the number of yellow chips by the total number of chips: 15 / 65 ≈ 0.231
Therefore, the probability of choosing a yellow chip at random is approximately 0.231 or 23.1%.