Question
A marble is selected at random from a jar containing 40 red marbles, 10 yellow marbles, and 50 green marbles. Find the theoretical probability that it is either red or green.
Answers
GPT 3.5
To find the theoretical probability that the marble is either red or green, we need to add the number of red marbles and green marbles together and divide by the total number of marbles in the jar.
Number of red marbles + number of green marbles = 40 + 50 = 90
Total number of marbles = 40 + 10 + 50 = 100
Therefore, the theoretical probability that the marble is either red or green is:
\( \frac{90}{100} = \frac{9}{10} = 0.9 \) or 90%.
Number of red marbles + number of green marbles = 40 + 50 = 90
Total number of marbles = 40 + 10 + 50 = 100
Therefore, the theoretical probability that the marble is either red or green is:
\( \frac{90}{100} = \frac{9}{10} = 0.9 \) or 90%.