Practice Questions
| 1. | Probability of picking a birthday gift Difficulty: medium | 
                                    
                                    4
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| 2. | The probability in the spinning game Difficulty: medium | 
                                    
                                    3
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| 3. | Calculate the probability of picking the product box Difficulty: medium | 
                                    
                                    4
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| 4. | Estimate the probability of the event Difficulty: hard | 
                                    
                                    6
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