Set Vocab
This is the set with nothing in it.
What is the EMPTY SET?
If set A = {odd numbers} and set B = {even numbers} what is A ∩ B?
The null set or the empty set { }
What is the probability that someone picked at random doesn't have a job?
Answer with a fraction or percent.
5/50 or 10%
What is the probability someone chosen at random likes cats and dogs?
Write your answer as a fraction.
5/30
If you have 1 pair of pants and 2 t-shirts, how many different combinations of outfits can you make with that?
Another word for the empty set.
What is the NULL set?
If set A = {Marvel super heroes} and set B = {DC super heroes} what is A ∩ B?
The null set or empty set { }
What is the probability that someone picked at random does social media and has a job?
Answer in a fraction or percent.
2/50 or 4%
What is the probability someone chosen at random doesn't like cats or dogs?
Write your answer as a reduced fraction
8/30 = 4/15
If you have 2 pairs of pants and 2 t-shirts, how many different outfits can you make with that?
4
This means everything the two sets have in common.
What is INTERSECTION?
If set A = {All negative counting numbers} and set B = {All positive counting numbers}, what is A ⋃ B?
A ⋃ B = {Integers}
What is the probability that someone chosen at random doesn't do social media and has a job?
Write your answer as a reduced fraction.
5/50 = 1/10
What is the probability someone chosen at random doesn't like cats or dogs?
Write your answer as a percent, rounded to the nearest whole number.
8/30 = 26.6% = 27%
What is the probability of flipping heads twice in a row?
50%? 40%? 30%? 25%?
25%
This means all elements of both sets
What is UNION?
If set A = {multiples of 3 up to 21} and set B = {3, 13, 16, 18, 24} what is A ∩ B?
A ∩ B = {3, 16}
What is the probability someone chosen at random does social media?
Write your answer as a percent.
16/50 = 32%
What is the probability that someone chosen at random likes dogs but not cats?
Write your answer as a fraction.
2/30 or 1/15
Using a 6-sided dice, what is the probability of rolling a 1 twice in a row?
1/12? 1/20? 1/30? 1/36? 1/50?
1/36
A diagram with overlapping circles that shows how many are part of a certain category.
What is a VENN diagram?
set A = {all perfect squares from 1 to 10}
set B = {all prime numbers from 1 to 10}
What is A ⋃ B?
A ⋃ B = {1, 4, 9, 3, 5, 7}
Set A = {everyone who plays video games}
Set B = {everyone who doesn't have straight A's}
How many students are in the set of C = { A ⋃ B }?
29
What is the probability that someone chosen at random likes cats but not dogs?
Write your answer as a percent. Round to the nearest percent.
5/30 = 16.6% = 17%
Suppose you pick a random card from a deck and it's the Ace of spades. Then you put the card back and shuffle the deck. What is the probability you pick the Ace of Spades again?
Write your answer as a percent rounded to the nearest whole number.
2%