Extra Review for Probability Quiz

You pull one card from a standard deck. Are the events "pulling an ace" and "pulling a king" mutually exclusive?

• Yes, because they cannot both happen at the same time.

• No, because they cannot both happen at the same time.

• Yes, they are both in the deck.

You pull one card from a standard deck of cards. Are the events "pulling a red card" and "pulling a king" mutually exclusive?

• Yes, because they cannot both happen at the same time.

• No, because you can pull a red King.

• Yes, because both cards are in the deck.

15% of freshmen take French, 30% take Spanish and 7% take both. Are taking Spanish and taking French mutually exclusive?

• No, 7% take both.

• Yes, 7% take both.

• Yes, they are different languages.

You roll a die several times. Is each roll dependent or independent of the previous rolls?

• Independent

• Dependent

If two events, A and B, are independent, which of these is definitely true?

• P(A) = P(B)

• P(A) = P(A given B)

• P(A) = P(A and B)

If you are asked about the P(A OR B), what do you do?

• add the probabilities and subtract off the overlap

• add the probabilities

• multiply the probabilities

The P(A) = .374 and the P(A given B) = .374. What does this mean?

• A and B are independent.

• A is dependent on B.

P(A) = .578 and P(A given B) = .897. What does this mean?

• A and B are independent.

• A is dependent on B.

• .2855
• .6246
• .0922
• .3230

Tags

CCSS.HSS.CP.B.6

CCSS.HSS.CP.A.1

What is the probability that a student does not play on a sports team? 

• .5
• .45
• .55

Tags

CCSS.HSS.ID.B.5

CCSS.HSS.CP.A.1

CCSS.HSS.CP.B.7