Understanding Sets Quiz

Which of the following is the correct definition of a set?

• A single item

• A collection of distinct objects called elements

• A group of random objects

• A method for organizing sentences

Which of the following is an example of a well-defined set?

• The set of “interesting books”

• The set of even numbers

• The set of “beautiful flowers”

• The set of “fun activities”

If 'A' represents the set of vowels in the English alphabet, which is the correct roster form?

• {a, b, c, d, e}

• {1, 2, 3, 4, 5}

• {a, e, i, o, u}

• {vowels in English alphabet}

What does it mean if B is a subset of A, written as B ⊆ A?

• Every element of A is also in B

• Every element of B is also in A

• A and B have no elements in common

• B has more elements than A

Which set represents the odd numbers less than 10 in roster form?

• {1, 2, 3, 4, 5}

• {1, 3, 5, 7, 9}

• {2, 4, 6, 8, 10}

• {0, 1, 3, 5, 7, 9}

In set notation, which of the following represents the set of natural numbers less than 5?

• {1, 2, 3, 4}

• {1, 2, 3, 4, 5}

• {0, 1, 2, 3, 4}

• {5, 6, 7, 8}

Which symbol represents an element belonging to a set?

• ⊆

• ∉

• ∈

• ⊄

If A = {2, 4, 6, 8} and B = {4, 8}, which statement is correct?

• B is not a subset of A

• A is a subset of B

• B ⊆ A

• None of the above

How would you describe the set of prime numbers less than 10 using a verbal description?

• The set of numbers less than 10

• The set of prime numbers less than 10

• The set of all even numbers less than 10

• The set of even numbers between 1 and 10

Which of these sets is correctly written in roster form?

• {red, green, yellow, blue}

• (red, green, yellow, blue)

• [red, green, yellow, blue]