A bag contains 3 red balls and 2 blue balls. If one ball is drawn at random, wha
Practice Questions
Q1
A bag contains 3 red balls and 2 blue balls. If one ball is drawn at random, what is the probability that it is red?
1/5
2/5
3/5
4/5
Questions & Step-by-Step Solutions
A bag contains 3 red balls and 2 blue balls. If one ball is drawn at random, what is the probability that it is red?
Correct Answer: 3/5
Step 1: Count the number of red balls in the bag. There are 3 red balls.
Step 2: Count the number of blue balls in the bag. There are 2 blue balls.
Step 3: Add the number of red balls and blue balls together to find the total number of balls. 3 red + 2 blue = 5 total balls.
Step 4: To find the probability of drawing a red ball, divide the number of red balls by the total number of balls. This is 3 red balls divided by 5 total balls.
Step 5: Write the probability as a fraction: 3/5.
Probability – The likelihood of an event occurring, calculated as the number of favorable outcomes divided by the total number of possible outcomes.
Counting Outcomes – Understanding how to count the total number of outcomes and favorable outcomes in a probability scenario.
