Final Review (Probability)

You give the answer to a probability problem as 6/5. The teacher marks it wrong. Why?

• It should have been 5/6.

• Its not written as a percent.

• Its more than 1.

• Its not written as a decimal.

What is the probability of drawing a red card from a standard deck of cards?

• 1/52
• 13/52
• 1/2
• 4/52

A bag has 4 green marbles, 3 red, 2 blue and 1 yellow. What is the theoretical probability of pulling a red?

• 3/10

• 3/6

• 1/9

• 1/3

A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be red or blue?

• 5/6
• 1/2
• 1/3
• 1/6

What is the Theoretical Probability of not landing on red?

• 25%
• 50%
• 65%
• 66.7%

What is the probability that a student does play a sport given they do not play an instrument? 

• .2
• .2222
• .10
• .5

What is the probability that they speak French given they are a girl? 

• 2.14
• .24
• .4
• .8571

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

Find P( Full-time | Male)

• 7/3

• 3/10

• 3/7

• 4/7

Is the event INDEPENDENT or DEPENDENT?
The spinner is spun twice.  What is the probability that it lands on red first and then blue?

• Independent
• Dependent

What is the probability of choosing someone who doesn't play given that they are not a boy.

• 5/6

• 1/3

• 5/14

• 23/42