1. Which of the following refers to the collection of well-defined distinct objects?
A. cardinality C. notation
B. element D. set
2. The set with countable number of elements is called ________.
A. empty set C. finite set
B. equivalent set D. null set
3. The following are well-defined sets, EXCEPT the ________.
A. multiples of 5
B. famous Cebuano singers
C. months in a year with 32 days
D. list of grade 7 students in the class
4. Which of the following is the listing/roster notation for M = {x/x is a whole number}?
A. M = {1, 2, 3, 4, 5} C. M = {0, 1, 2, 3, … }
B. M = {1, 2, 3, 4, … } D. M = {0, 1, 2, 3, 4, 5}
5. Which of the following is the set builder notation for P = {4, 6, 8, 10, 12, 14}?
A. P = {x/x is an even number}
B. P = {x/x is an even number from 4
C. P = {x/x is an even number from 4 to 14}
D. P = {x/x is an even number between 4 and 14}
6. What is the listing/roster notation for “the consonants in the English alphabet”?
A. {a, e, i, o, u} C. {b, c, d, f, g, …}
B. {a, e, i, … } D. {b, c, d, … , z}
7. The statement “a null set is always a subset of every set” is _________.
A. always true C. sometimes true
B. always false D. sometimes false
8. Which of the following are equal sets?
A. { } and { 0 }
B. {red, blue, yellow} and {yellow, blue red}
C. {5, 10, 15, 20, 25} and {10, 15, 20, 25, 30}
D. {m, a, t, h} and {m, a, t, h, e, m, a, t, i, c, s}
9. What is the cardinality of the set of vowels in the word MATHEMATICS?
A. { 4 } C. 4
B. { 3 } D. 3
10. Given the figure at the right, which of the
statements is correct?
A. A ⋃ B = {5, 10, 15, 15, 20, 20, 25, 30} B. A ⋃ B = {5, 10, 15, 20, 25, 30} C. A ∩ B = {5, 10, 15, 15, 20, 20, 25, 30} D. A ∩ B = {5, 10, 15, 20, 25, 30}