probability

There are 4 white marbles, 6 red marbles, and 2 blue marbles. Once a marble is selected, it is not replaced. Find the probability of selecting 2 blue marbles.

• 1/2
• 1/36
• 1/6
• 1/66

Tags

CCSS.HSS.CP.B.9

What is the probability of picking a blue marble, putting it back in the bag, then picking a red marble? (leave answer in fraction form in lowest terms)

• 9/49

• 16/49

• 12/42

• 12/49

A coin is tossed and a number cube is rolled. Find the probability of landing on tails & rolling a 5.

• 1/14

• 1/12

• 0

• 1/7

If all items chosen are treated the same it is a ....

• Comparision
• Permutation
• Combination
• Position

In the orchestra, there are eight violinists in the front row. How many different ways can they be seated in the front row if there are 20 students in orchestra?

• 40320
• 125,970

• 64
• 8

The ski club with ten members is to choose three officers for captain, co-captain and secretary.  How many ways can those offices be filled?

• 720
• 120
• 10!

If you throw a dart at the square design below, what is the probability that you hit the center square?

Find the probability of a marble falling on the circle of the figure. 

Find the probability that a point chosen at random will be in the triangle.

A bag has 2 yellow marbles and 8 brown marbles. Nancy takes out two marbles without replacing the marbles. What is the probability that they will both be yellow?

• 2/19

• 1/10

• 1/25

• 1/45

Tags

CCSS.HSS.CP.B.9