Free Practice Question
PS · Problem Solving
sub-505
Probability
In a container, there are 8 blue balls and 2 green balls. First, Jamie picks a ball randomly, notes its color, and returns it to the container. Then, Taylor picks a ball randomly from the same container. What is the probability that both Jamie and Taylor select green balls?
Answer Choices
Correct answer marked belowA
2/100
4/100
Correct
C
1/5
D
3/10
E
2/5
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Explanation
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Official Explanation
Official
In a container, there are 8 blue balls and 2 green balls. First, Jamie picks a ball randomly, notes its color, and returns it to the container. Then, Taylor picks a ball randomly from the same container.…
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Comments
2
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C
ChristinaJul 25, 2024
cheers!
S
SahilApr 17, 2025
Greatt
What this question tests
What it tests
Your ability to compute probabilities of single and compound events, including 'at least one' questions.
Common trap
Forgetting to use the complement for 'at least one', or treating dependent events as independent.
Details
Difficulty
sub-505
Type
PS
Category