Determine whether the following simulation design is valid. Justify your answer. According to a recent poll, 75% of American adults regularly recycle. To simulate choosing a random sample of 100 U.S. adults and seeing how many of them recycle, roll a 4-sided die 100 times. A result of 1, 2, or 3 means the person recycles; a 4 means that the person doesn't recycle.
a. Valid
b. Invalid
c. Needs modification
d. Can't determine