Independence Probability

Identify whether events A and B are independent based on the following statements. P(A) = 0.5 P(B) = 0.45 P(AandB) = 0.225

• Yes, because P(A) = P(AandB)

• Yes, because P(A) * P(B) = P(AandB)

• No, because P(A) ≠ P(AandB)

• No, because P(A) * P(B) ≠ P(AandB)

• No, because P(A) ≠ P(A|B)

Are the events "first class passenger" and "survived" independent?

• Independent P(first class) = P(first class | survived)

• Not Independent P(first class) ≠ P(first class | survived)

• Independent P(first class) = P(not first class)

• Not Independent P(first class) ≠ P(first class and survived)

P(Pizza|Senior):

• 10/15

• 4/5

• 2/3

• 10/5

• .2855
• .6246
• .0922
• .3230

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

• .5

• .45

• .55

Let M represent the event of randomly selecting a male. Let S represent the event of randomly selecting a person that drives a SUV.

Determine if the events M and S are independent.

• Independent

• Not Independent

Are the events "blonde" hair and "blue" eyes independent?

• Independent because P(blonde) = P(blonde | blue)

• Not Independent P(blonde) ≠ P(blonde | blue)

• Independent because P(blonde) = P(blue)

• Not Independent P(blonde) ≠ P(blue)

Consider the following table with information about all of the students taking Statistics at Happy High School.

P( Male | Full-time)

• 28/71

• 3/7

• 12/71

• 3/10

What is P(T given C)?

• 45%

• 29.6%

• 40%

• 33.3%