Question: Experimental vs. Theoretical Probability
You plan on drawing a card from a
standard 52-card deck, recording
the value, and replacing it 45 times.
What is the theoretical
probability of drawing a king? There
are 4 kings in a deck.
P(King) = [ ? ]%
Round your answer to the nearest whole percent.
1. **State the problem:** We want to find the theoretical probability of drawing a king from a standard 52-card deck.
2. **Formula for theoretical probability:**
$$P(\text{Event}) = \frac{\text{Number of favorable outcomes}}{\text{Total number of possible outcomes}}$$
3. **Apply the formula:**
- Number of favorable outcomes (kings) = $4$
- Total number of possible outcomes (cards) = $52$
So,
$$P(\text{King}) = \frac{4}{52}$$
4. **Simplify the fraction:**
$$P(\text{King}) = \frac{\cancel{4}}{\cancel{52}} = \frac{1}{13}$$
5. **Convert to percentage:**
$$P(\text{King}) = \frac{1}{13} \times 100 = 7.6923\%$$
6. **Round to the nearest whole percent:**
$$P(\text{King}) \approx 8\%$$
**Final answer:** The theoretical probability of drawing a king is approximately $8\%$.