Compound Probability STAAR Practice

What is the probability that a coin will land on heads and then a coin will land on tails?

• 1/4
• 1/2
• 2/4
• 1/6

You have a bag of 11 marbles.  Two are blue, 4 are green, 2 are red, and the rest are yellow.  What is the probability of drawing a red marble, putting it aside, and then drawing a green marble? Give your answer in simplest form.

• 8/121
• 4/55
• 3/55
• 4/121

You have a bag of 11 marbles.  Two are blue, 4 are green, 2 are red, and the rest are yellow.  What is the probability of drawing a green marble, putting it aside, and then drawing another green marble? Give your answer in simplest form.

• 6/55
• 8/121
• 12/121
• 2/11

You have tiles numbered 1 – 9 in a bag.  What is the probability of drawing the number 2, putting it aside, and then drawing the number 5?  

• 1/81
• 1/72
• 2/72
• 2/9

You have a bag of 11 marbles. Two are blue, 4 are green, 2 are red, and the rest are yellow.  What is the probability of drawing a blue marble, replacing it, and then drawing a yellow marble?

• 2/11
• 6/121
• 6/110
• 3/55

What is the probability of drawing the ACE of diamonds from a deck of cards, putting it back in deck, shuffling the deck, and then drawing the ACE of clubs? (Hint: There are 4 aces in a deck, and a total of 52 cards in a deck).

• 1/269
• 1/2704
• 2/52
• 1/52

What is the probability of rolling a 3 on a 6-sided number cube and then NOT rolling a 3 on a 6-sided number cube?

• 5/36
• 1/6
• 1/36
• 1/12

What is the probability of rolling an even number on a die and then rolling an odd number?

• 1/36
• 3/36
• 1/3
• 1/4

  Kerry has a game that uses 10 tiles that are different shapes.
 ·  2 of the tiles are rectangles.
·  4 of the tiles are triangles.
·  The remainder of the tiles are circles.  
Kerry chooses one triangle tile from the bag and then gives the bag to her friend Pam without putting the tile back. If Pam takes one tile from the bag without looking, what is the probability that the tile she chooses will be a circle?

• 8/10
• 1/90
• 16/90
• 4/9

Donna has a bag of candy with 10 pieces in it.  
 ·  5 pieces of candy are caramel.
·  3 pieces of candy are chewy.
· The remainder of the candy is chocolate.
 What is the probability that Donna will choose a piece of candy that is chewy, eat it, and then choose a piece of candy that is chocolate?

• 3/50
• 3/45
• 1/5
• 1/2