Item 1 Question 1
You randomly guess the answers to four true-false questions.

a. Which simulation can you use to model the answers?

Roll four number cubes. Let the number 1 represent a correct answer and the number 2 represent an incorrect answer.

Roll a number cube and let the numbers 1 through 4 represent the number of questions you guess correctly. Run 40 trials.

Roll two number cubes. Let one number cube represent a correct answer and the other number cube represent an incorrect answer. Run 40 trials.

Roll four number cubes. Let an odd number represent a correct answer and an even number represent an incorrect answer. Run 40 trials.
Question 2
b. Use the simulation results to find the experimental probability that you answer all four questions correctly.

1513 5463 1564 4644 5462 6443 3145 6213
6545 4256 6552 5326 3256 2454 5214 5441
4321 4211 6135 6242 5621 3342 3353 5623
1563 3536 1325 5435 2656 6534 2654 1564
5642 4625 4311 5631 6543 1235 3325 5616
The experimental probability is
%.