Answer:
firstly ,we need to put the set of ages into categories
Example: (Category1 = age 19 ; category2 = age 20 ; ........ )
→ The frequency of a certain value (age) is equal to the number of times that specific age appears in the data set.
Step-by-step explanation:
Universal set is a set which contains all values
Union of Sets : The joining of two or more sets .
The answer is Quadrant 1
(a+b)(ab)
