Sets Math Test

A set is best described as:

• a) A random group of numbers
  

• 
  b) A collection of well-defined objects
  

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  c) A list of similar items only
  

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  d) A large number of objects

Which of the following is NOT a set?

• a) {1, 2, 3, 4}
  

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  b) {red, blue, green}
  

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  c) {prime numbers less than 10}
  

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  d) A group of tall students

If A={2,4,6,8} and B={6,8,10,12}, what is A∩B

• a) {2, 4, 6, 8, 10, 12}
  

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  b) {6, 8}
  

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  c) {2, 4}
  

• 
  d) {}

1. Which of the following is a finite set?
   

• 
  a) The set of all stars in the sky
  

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  b) The set of even numbers
  

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  c) The set of students in your class
  

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  d) The set of numbers greater than 5

The empty set is a subset of every set.

• TRUE

• FALSE

The universal set contains every element in the world.

• TRUE

• FALSE

{1,2,3}∩{4,5,6}={1,2,3,4,5,6}

• TRUE

• FALSE

Every finite set has a limited number of elements.

• TRUE

• FALSE

A={1,2,3} and B={3,4,5}, so A∪B={3}

• TRUE

• FALSE

The complement of a set A includes all elements in the universal set that are not in A.

• TRUE

• FALSE