Probability

A bag contains 5 blue marbles, 4 red marbles, and 3 orange marbles. Mr. Rogers picks one without looking, replaces it and picks another one. What is the probability that he picks two that are not orange? 

• 9/16
• 3/4
• 9/144
• 5/16

You have a bag of 17 marbles.  4 are blue, 6 are green, 2 are red, and the others are yellow (5).  What is the probability of drawing a green marble, putting it aside, and then drawing another green marble?

• 15/136
• 30/289
• Other
• 6/17

In the game that Tony is playing, there is a 1/8 chance the spinner will land on red and a 3/8 chance that the spinner will land on yellow.   What is the probability that Tony will NOT spin red, then will spin red?

• 7/64
• 7/16
• Other
• 3/64

A six sided die is rolled twice. What is the probability of getting a 6 on the first roll, then a number less than 5 on the second roll? 

• 2/3
• 5/36
• 1/9
• 1/36

Jason has the spinner pictured here and a bag of marbles filled with 2 red marbles, 3 green marbles, and 3 blue marbles. What is the probability that he spins red on the spinner and picks a red marble out of the bag?

Lucy has the spinner pictured and spins it twice in a row. What is the probability that she lands on blue first and then on yellow or green?

You have a bag of 17 marbles.  Four are blue, 6 are green, 2 are red, and the others are yellow.  What is the probability of drawing a red marble, putting it aside, and then drawing a green marble?

When using a 6-sided die, what is the probability or rolling a 3, then not rolling a 3, and then rolling an even number?

• 1/12
• 1/2
• 5/6
• 5/72

Jamie has 3 raffle tickets. One hundred tickets were sold. Her name was not drawn for the first prize. What is the probability that her name will be drawn for the second prize?

• 1/3
• 1/33
• 3/100
• 2/99

You roll a six sided die. What is the probability of rolling an even number three times in a row?