Probability or And Then

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?

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

A chorus has 50 girls and 35 boys. If two are chosen at random to sing a duet, what is the probability that both will be boys? HINT: You can not have the same person twice in a duet 

• 1/6

• 7/17

• 3/8

• 13/25

A coin and a six sided die are tossed. What is the probability of the coin showing tails and the number cube showing the number 3? 

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

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

A fruit basket contains
9 apples, 3 bananas, 7 oranges, 5 pears, and 1 grapefruit. Kyle randomly chooses a fruit, does not replace it, then chooses another. What is the probably that he chose two pears?