SAT Probability and conditional probability Question
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Question 1 · Hard · MathAugust 2025 Batch 6 · Q20Probability and conditional probability · 0 solved
| - | years | years | 20+ years | Total |
|---|---|---|---|---|
| Group A | 15 | 11 | 4 | 30 |
| Group B | 4 | 5 | 21 | 30 |
| Group C | 11 | 14 | 5 | 30 |
| Total | 30 | 30 | 30 | 90 |
The table summarizes the distribution of age and assigned group for 90 participants in a study. One of these participants will be selected at random. What is the probability of selecting a participant from group A, given that the participant is at least 10 years of age?
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