The bar graph above shows the probability distribution of the number of heads when flipping 4 coins. The x-axis represents the number of heads, and the y-axis shows the probability for each outcome.

Would you like more details or have any questions?

Here are 5 related questions for deeper exploration:

1. What is the expected number of heads when flipping 4 coins?
2. How does the distribution change if 6 coins are flipped instead of 4?
3. What is the variance of the number of heads when flipping 4 coins?
4. How would the probabilities change if the coins were biased (not 50/50)?
5. How many ways can you get exactly 2 heads when flipping 4 coins?

Tip: The sum of all probabilities in a probability distribution must equal 1, as it covers all possible outcomes.