Probability Sol

You have a bag of 10 marbles. Four are red and 6 are blue. What is the probability of drawing a blue marble, putting it aside, and then drawing a red marble?

• Dependent
• Independent

Clara picks a card at random, puts it back, and then picks another card at random.

• Independent
• Dependent

Is the event INDEPENDENT or DEPENDENT?
The spinner is spun twice.  What is the probability that it lands on red first and then blue?

• Independent
• Dependent

Is the event INDEPENDENT or DEPENDENT?
A bowl of fruit is on the counter.  Two brothers ran in from school and each grabbed a piece of fruit at the same time.  What is the probability that they each grabbed a banana?

• Independent
• Dependent

A cooler contains 20 sodas: 6 Sprites, 4 Mountain Dews, 3 Pepsi, and 7 Grape Crushes.  Alexis wants a Grape Crush but cannot see in the cooler.  What is the probability that she picks a Mountain Dew, puts it back,and picks her Grape Crush?

• 7/570
• 21/200
• 7/57
• 7/100

Grace buys a pack of Starbursts that has 3 orange, 6 pink, 1 yellow, and 5 red Starbursts.  She puts the candy in the bowl.  If she reaches in and grabs two Starbursts without putting one back, what is the probability that she will pick a pink and then a yellow?

• 1/35
• 7/210
• 6/225
• 2/75

Talon bought a bag of gumballs.  He has 3 blue, 5 yellow, 2 pink, and 2 orange gumballs.  What is the probability that he will select and chew a yellow gumball and then select another yellow gumball?

• 20/121
• 5/33
• 5/36
• 20/144

• A
• B
• C
• D

• A
• B
• C
• D

• 8/81
• 1/3
• 1/9
• 28/81