# Worksheet: Empty Set

In this worksheet, we will practice defining the empty set and using its properties to solve problems including operations on sets.

**Q3: **

Which of the following choices is NOT an empty set?

- AThe set of odd numbers between (but not including) 6 and 7
- BThe set of even numbers between (but not including) 6 and 7
- CThe set of whole numbers between (but not including) 6 and 22
- DThe set of whole numbers between (but not including) 6 and 7

**Q4: **

Define the term *empty* set.

**Q5: **

Is the following set null or not?

The set of the governerates in Upper Egypt that are located on the Mediterranean Sea.

- Anot null
- Bnull

**Q7: **

Is the following set null or not?

The set of even numbers less than 2.

- ANull
- BNot null

**Q9: **

Is the set of Egyptian governorates in Asia null or not?

- ANull
- BNot null