Symbolic Probability

What does this symbol ( ∪ ) represent in set theory?

• Union

• Intersection

• Disjointed

• Subset

What does this symbol ( ∩ ) represent in set theory?

• Union
• Intersection
• Disjointed
• Subset

If A = {1, 3, 5, 7, 9} and B = {2, 3, 5, 7}, what is A ∩ B?

• {3, 5, 7}

• {2, 3, 5, 7}

• {2, 3, 5, 7, 9}

• {1, 2, 3, 5, 7, 9}

What statement does the shaded region represent?

• A ∩ B ∩ C
• A  ∪ B ∩ C
• B ∩ C
• A ∪ C

Which of the following represents the shaded region?

• (A ⋃ B)'
• (A ∩ B)'
• A'
• B'

How many students do not ski or ice skate?

• 10
• 16
• 22
• 28

From the above Venn diagram, what is the set S ∩ T?

• {casey, drew, jade, glen}
• {alex, casey, drew,hunter}
• {casey, drew}
• {drew, jade}

What is the P(B)?

• 56/135
• 52/135
• 64/135
• 63/135

There are 10 counters in a bag, 3 red and 7 blue.

I take one counter, then another without replacement.

Find the probability of the value marked x

• ⁷/₁₀

• ³/₁₀

• ⁶/₉

• ²/₉

There are 10 counters in a bag, 3 red and 7 blue.

I take one counter, then another without replacement.

Find the probability of the value marked y

• ⁷/₁₀

• ³/₁₀

• ⁶/₉

• ²/₉