Answer
Set:, 50-year-old father, 49-year old mother, 24-year old daughter and 22-year old son.
Subset:, Two parents.
Work Step by Step
Explain real numbers are closed with respect to multiplication, but the irrational numbers, a subset of the real numbers, are not. Give an example of a set that is not mathematical that has a particular characteristic, which has a subset without this characteristic.
That the real numbers are closed with respect to multiplication but the irrational numbers, a subset of the real numbers are not.
Consider the set of the family members of a family with 50-year-old father, 49-year old mother, 24-year old daughter and 22-year old son. The entire set has the characteristics of being allowed admittance to an R-rated movie. However, any subset that does not contain at least one of the two parents would not have this characteristic.
