Probability Lab

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

The chart below represents the number of marbles in a jar.

P(green) =

• 5/19

• 10/28

• 5/14

Determine the likelihood of the following event:

Drawing a red card from a standard deck of cards

• 1/2

• 13/52

• 1/4

• 4/52

P(not A) =

*Remember to simplify.*

• 6/8

• 3/4

• 2/8

• 1/4

Christopher picks a marble at random. Without putting the first marble back, he picks a second marble at random.

• Independent

• Dependent

During P.E. class, one team is picking softball gloves from the class bucket. Lindsey chooses a glove first, followed by Megan.

• Dependent

• Independent

Reid picks a card at random. Without putting the first card back, he picks a second card at random.

• Dependent

• Independent

P(1 and A)

• 1/16

• 1/10

• 4/16

• 1/4

Draw a tree diagram in your math workbook. Then answer this question. A girls' choir is choosing a uniform for their concert. They can pick red, green, or purple sweaters, and they can pick tan, white, or black skirts. The shoes they need come in gold and black. Assuming all the colors go together, how many different combinations can the choir pick?

• 3 combinations

• 8 combinations

• 12 combinations

• 18 combinations

The tree diagram shows the outcomes of rolling a die and flipping a coin.

What is the probability of rolling an even number and flipping a head?

• ³/₁₂

• ¹/₂

• ⁴/₁₂

• ⁰/₁₂