The image you've uploaded presents a probability problem. Let's walk through the questions one by one:

1. Probability of guessing the first question correct: Since there are 4 choices for each multiple-choice question, the probability of guessing correctly is: $\text{Probability} = \frac{1}{4} = 0.25 \text{ or } 25\%.$ This is already correctly provided in the image.

2. Probability of guessing the first question wrong: If the probability of guessing correctly is 25%, the probability of guessing wrong is: $\text{Probability} = 1 - 0.25 = 0.75 \text{ or } 75\%.$ This is also correctly marked in the image.

3. Probability of guessing all 3 questions right: Since each question is independent, the probability of guessing all three correctly is the product of the probabilities of guessing each one correctly: $\text{Probability} = \left( \frac{1}{4} \right) \times \left( \frac{1}{4} \right) \times \left( \frac{1}{4} \right) = \frac{1}{64} = 0.015625.$ Converting this to a percentage and rounding to three significant digits: $\text{Probability} = 0.015625 \times 100 = 1.56\%.$

Thus, the probability of guessing all three questions correctly is approximately 1.56%.

Would you like more details on how I calculated these probabilities, or do you have further questions? Here are 5 related questions you might find interesting:

1. What is the probability of guessing exactly 2 out of 3 questions correctly?
2. What is the probability of guessing none of the questions correctly?
3. How does the probability change if there are 5 answer choices per question?
4. What is the probability of guessing exactly 1 out of 3 questions right?
5. What is the expected number of correct answers if you guess randomly for all 3 questions?

Tip: When dealing with independent events, the overall probability is the product of the individual probabilities.