Basic Concepts of Sets

If set Q contains the letters in the word "sister", which of the following is set Q?

• Q = {s, i, s, t, e, r}

• Q = { S, I, S, T, E, R }

• Q = {s, i, t, e, r}

• Q = { S, I, T, E, R }

Which of the following is the symbol for an empty set?

• ∅

• ⊂

• ∈

Which of the following is the symbol for element of?

• ∅

• ⊂

• ∈

What type of set is denoted as either { } or ∅?

• Cardinality of Set

• Empty (or Null) Set

• Subset

Which of the following is not a well-defined set?

• set of young politicians

• set of planets in our solar system

• set of all oceans of the earth

• set of consonants in the English Alphabet

The elements of a set are separated by a

• equal

• comma

• semi colon

What is the cardinality of the set, H = {w, o, n, d, e, r, f, u, l}? Only type the number

The name of set is denoted by

• uppercase letters

• lowercase letters

The roster method describes the elements.

• TRUE

• FALSE

set of odd numbers

• well-defined set

• not