Probability: Simple Events

Interactive Tutorial • Practice Problems • Speed Quiz

What is Probability? 🤔

  **Probability** is the chance that a specific event will happen. We calculate it using a simple formula:

  $$P(\text{event}) = \frac{\text{Number of Favorable Outcomes}}{\text{Total Number of Possible Outcomes}}$$

 
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Video: The Basics 🎥

Watch this video to visualize probability concepts.

 
 
 

Practice Problems

Calculate the probability for each problem. Enter your answer as a decimal rounded to two places.

 
   
1) Coin Flip
   

P(Heads)

       
   
 
 
   
2) Die Roll
   

P(Rolling a 3)

       
   
 
 
   
3) Marble Bag
   

Bag: 5 Red, 3 Blue, 2 Green. P(Red)

       
   
 
 
   
4) Deck of Cards
   

Standard Deck (52 cards). P(Drawing a ♠️)

       
   
 

⚡ Probability Speed Quiz

       
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