If a box contains 10 balls, 4 of which are blue, what is the probability of sele
Practice Questions
Q1
If a box contains 10 balls, 4 of which are blue, what is the probability of selecting a blue ball?
2/5
1/2
4/10
3/10
Questions & Step-by-Step Solutions
If a box contains 10 balls, 4 of which are blue, what is the probability of selecting a blue ball?
Correct Answer: 2/5
Step 1: Count the total number of balls in the box. There are 10 balls.
Step 2: Count how many of those balls are blue. There are 4 blue balls.
Step 3: To find the probability of selecting a blue ball, divide the number of blue balls by the total number of balls. This is 4 (blue balls) divided by 10 (total balls).
Step 4: Write the fraction as 4/10.
Step 5: Simplify the fraction 4/10 by dividing both the top and bottom by 2. This gives you 2/5.
Probability – The likelihood of an event occurring, calculated as the number of favorable outcomes divided by the total number of possible outcomes.
