12.4. Example of PMF

Try these first

1. 1.

   What is the PMF for tossing a fair coin?

   Hint

   Remember the outcomes: Heads and Tails.

2. 2.

   How many distinct outcomes are there when rolling a die?

   Hint

   Think of each side of the die.

3. 3.

   What does PMF stand for?

   • Probability Mass Function
   • Probability Model Function
   • Predictive Mass Function

   Hint

   Think about its role in representing probabilities.

4. 4.

   A PMF gives probabilities for which type of variables?

   • True
   • False

   Hint

   Consider the outcomes it addresses.

5. 5.

   A biased coin is flipped, resulting in Heads with a probability of 0.7. What is the PMF for this scenario?

   Hint

   Use the complement rule for probabilities.

6. 6.

   If you roll two fair six-sided dice, what is the PMF for the outcome of the sum of the numbers?

   Hint

   Think of the individual die outcomes and how to mix them.