untitled

It is an ordered collection of objects.

• relation

• function

• set

• proposition

The set O of odd positive integers less than 10 can be expressed by _____________

• {1, 2, 3}

• {1, 3, 5, 7, 9}

• {1, 2, 5, 9}

• {1, 5, 7, 9, 11}

What is the cardinality of the set of odd positive integers less than 10?

• 10

• 5

• 3

• 20

Which of the following two sets are equal?

• A = {1, 2} and B = {1}

• A = {1, 2} and B = {1, 2, 3}

• A = {1, 2, 3} and B = {2, 1, 3}

• A = {1, 2, 4} and B = {1, 2, 3}

If U = {1,2,3,4,5} and A = {2,4} then A' should be

• {2,4,5}

• {2,4}

• {1,2,3,4,5}

• {1,3,5}

To find the average of a set of numbers, add up all the items and divide by...

• 2

• The minimum

• The maximum

• The number of items

A data set can have more than one mode

• true

• false

What is the mode?

• # happening the most

• the average

• biggest - smallest

• the middle #

What is the mean?

• # happening the most

• the number in the middle

• biggest-smallest

• the average

Sum of three consecutive integers is 45. Find the integers.

• 13, 14, 15

• 14, 15, 16

• 15, 16, 17

• 16, 17, 18