union intersection subsets

 $What\ does\ \cap\ mean?$  

• Union

• Intersection

• Data Set

• Subset

A = {1, 3, 5, 7, 9}

B = {2, 3, 5, 7}

What is A ∪ B ?

• {3, 5, 7}

• {2, 3, 5, 7, 9}

• {2, 3, 5, 7}

• {1, 2, 3, 5, 7, 9}

Let C={2, 5, 7, 10} and B={x|x is an odd whole number less than 10}. Find C U B

• {1,2,3,5,7,9,10}

• {2, 4, 5, 6, 7, 8, 10}

• {2, 4, 7, 8, 10}

• { 6, 7, 8, 10}

Which of the following statements are true for the Venn diagram shown?

• A ∩ B = ⊘

• A ⋃ B = A

• A ⋃ B = ⊘

• A ⋂ B = A

Left Pocket (L) = {pencils, erasers, pens}

Right Pocket (R) = {gloves, paper, coins, phone}

What is L ∪ R?

• ∅

• {gloves, paper, coins, phone}

• {pencils, erasers, pens}

• {pencils, erasers, pens, gloves, paper, coins, phone}

Z ∪ Y

• { }

• {Brittney, Na'Quan, Bryan, Gabriel, William}

• {Sarah, Gabino, Ja-Leah, Billy, Phillip, Bryan, Perez, Gabriel, William}

• {Gabriel, William, Bryan, Phillip, Perez}

A well-defined set is a group, list, or collection of easily identified objects that shared a common characteristic. Which of the following is NOT a well-defined set?

• group of Grade 7 female students

• color in the Philippine flag

• distinct letter in the word Philippines

• good senators in the Philippines

The following is a subset of A = { 2, 4, 6, 8, 10 }, except

• X= {2 , 4}

• Y= {6,8,10}

• Z= {2,4,6,8}

• W={9}

Which of the following is true ?

• 16 ∈{ 2,4,6,8 }

• {g} ∈{ d,e,f }

• { -16} ∈{ x| x is an integer }

• 6 ∈{x| x is a prime number}

Let H ={ 1,3,5 } and M={ 2,3,5,7 }. Which of the following shows H∩M ?

• { }

• { 3, 5 }

• { 1, 2, 3, 5, 7 }

• { 1, 7 }