Question: A jar contains 10 marbles: 4 red, 3 blue, and 3 green. What is the probability of picking a green marble?
Options:
1/3
3/10
1/4
1/5
Correct Answer: 3/10
Solution:
Total marbles = 10. Probability of green marble = 3/10.
A jar contains 10 marbles: 4 red, 3 blue, and 3 green. What is the probability o
Practice Questions
Q1
A jar contains 10 marbles: 4 red, 3 blue, and 3 green. What is the probability of picking a green marble?
1/3
3/10
1/4
1/5
Questions & Step-by-Step Solutions
A jar contains 10 marbles: 4 red, 3 blue, and 3 green. What is the probability of picking a green marble?
Step 1: Count the total number of marbles in the jar. There are 4 red, 3 blue, and 3 green marbles.
Step 2: Add the number of marbles together: 4 (red) + 3 (blue) + 3 (green) = 10 total marbles.
Step 3: Count the number of green marbles. There are 3 green marbles.
Step 4: To find the probability of picking a green marble, divide the number of green marbles by the total number of marbles: 3 (green) / 10 (total).
Step 5: The probability of picking a green marble is 3/10.
Probability Calculation – Understanding how to calculate the probability of an event by dividing the number of favorable outcomes by the total number of outcomes.
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