quiz 2: Chapter 2.1-2.2
A set that contains no elements is called the empty/null set and is represented by {} or Ø.
A set that contains no elements is called the _______ set and is represented by _______.
The set is finite with a cardinality of 11.
Determine whether the set is finite or infinite. The set of natural numbers less than 12.
Proper subset
Emerging from their often unsavory reputation of the recent past, tattoos have gained increasing prominence as a form of body art and self-expression. A Harris poll conducted in 2008 estimated that 32 million Americans, or 14% of the adult population, have at least one tattoo. Is the set of people with math tattoos a subset or proper subset of the set of all people with tattoos? Assume not all people with tattoos chose math ones.
Psychology
Modern medical advances help doctors learn more about body systems, diseases, and related topics. It is helpful in research to classify things in sets when they have common characteristics. For example, A, B, AB, and O are classified as blood types. If a researcher is learning more about personalities, learning theory, and so forth, how would we classify those studies?
A ⊂ B sets A and B are not equal.
Set A is a proper subset of set B, expressed as___means that set A is a subset of set B and ____
Set A is a subset of set B, expressed as A⊆B, means that every element in set A is also an element in set B.
Set A is a subset of set B, expressed as _______, means that _______.
cardinal n(A).
The number of distinct elements in a set is called the___number of the set. If A represents the set, this number is represented by___
2 ^n
The number of subsets of a set with n elements is _______.
natural numbers.
The set {1,2,3,4,5,...} is called the set of _______.
the roster method, set-builder notation.
The set {California, Colorado, Connecticut} is expressed using____The set {x|x is a U.S.state whose name begins with the letter C} is expressed using____
an element
The symbol ∈ is used to indicate that an object is __of a set.
equal
Two sets that contain the same elements are called __ sets.
The statement is false. It should be changed to D⊆P.
Determine whether the following statement is true or false. If the statement is false, make the necessary change(s) to produce a true statement. Upper D∈P Let P= the set of pierced Americans R= the set of pierced Republicans D=the set of pierced Democrats M=the set of pierced Republican men W=the set of pierced Republican women