Probability Assessment

Christopher picks a marble at random. Without putting the first marble back, he picks a second marble at random. This is considered to be "without replacement". What type of probability is this?

• Independent

• Dependent

A box contains 5 purple marbles, 3 green marbles and 2 orange marbles. Draws are made WITH replacement.P(both marbles are purple)

• 1/4

• 1/5

• 2/9

• 2/5

In a game, Erin is rolling a fair number cube with faces numbered 1 through 6. Which BEST describes the probability of rolling an even number?

• impossible

• equal to the probability of rolling an odd number

• less likely than the probability of rolling an odd number

• more likely than the probability of rolling an odd number

If he chooses one pencil without looking, what color is he LEAST likely to choose?

• blue

• green

• red

• yellow

Tim conducted a survey of the music preferences of forty of his classmates. The results are shown in the table below.

What is the probability, to the nearest percent, that one of the students surveyed, chosen at random, will prefer Country or Rap music?

• 15%

• 25%

• 38%

• 50%

A fair number cube has sides numbered 1 through 6. When the cube is rolled 100 times, which would be MOST likely to occur?

• All the numbers rolled would be odd

• The number 6 would never be rolled.

• The number 7 would be rolled at least once.

• An even number would be rolled 50 times.

The probability of spinning red on Julie's spinner is 1. Which best describes the probability of spinning red on Julie's spinner?

• impossible

• likely

• unlikely

• certain

Kai rolled a number cube 75 times. The results are listed in the table. What is the experimental probability of rolling a 6?

• 4%

• 12%

• 16%

• 17%

Probability of landing on a purple number on this spinner

• 12.5%

• 10%

• 25%

• 50%

A bag has 3 red, 5 blue, and 2 yellow pieces of candy. What is the probability of drawing a blue piece of candy?

• ¹/₂

• ¹/₁₀

• ³/₁₀

• ¹/₃