Chapter 2.1

Write a description of the set. ​{Leo, Libra} A. The set of Zodiac signs that begin with L. B. The set of Zodiac signs. C. The set of Zodiac signs for January and February. D. The set of Zodiac signs for June and July.

A. The set of Zodiac signs that begin with L.

Fill in the blank so that the resulting statement is true. The number of distinct elements in a set is called the __________ of the set. If A represents the​ set, this number is represented by __________.

Cardinal Number n(A)

A set that contains no elements is called the​ _______ set.

Empty/Null

Two sets that contain the same elements are called __________ sets.

Equal

Two sets that contain the same number of elements are called​ __________.

Equivalent

A fast food chain is thinking of opening a new restaurant location. The company conducts a market survey of students from the nearby college campus to determine their interest in new fast food restaurants. They ask the students surveyed to identify which fast food restaurants are the best. Is the set of​ 'best fast food​ restaurants' well-defined? Choose the correct answer below. No Yes

No

Fill in the blank so that the resulting statement is true. The set​ {California, Colorado,​ Connecticut} is expressed using the __________. The set​ {x|x is a U.S.state whose name begins with the letter​ C} is expressed using __________.

Roster Method Set-builder Notation

Determine if the collection is not well defined and therefore is not a set. The collection of the five best U.S. museums

The collection is not well defined and therefore it is not a set.

Determine if the collection is not well defined and therefore is not a set. The collection of U.S. airports

The collection is well defined and therefore it is a set.