5 Minute Check (Independent and Dependent Probability)

You randomly draw a marble from a bag containing 2 red marbles and 5 green marbles. You put the marble back and then draw a second marble.

• Dependent Event

• Independent Event

You randomly draw a marble from a bag containing 2 red marbles and 5 green marbles. You keep the marble and then draw a second marble.

• Dependent Event

• Independent Event

New is a buyer for an electronics store. He received a shipment of 5 hair dryers in which one is defective. He randomly choose 3 of the hair dryers to test. Determine whether choosing the hair dryers are independent or dependent events.

• Dependent Event

• Independent Event

A street magician asks a volunteer to pick a card, which is put back into the deck at the end of the trick. A few minutes later, the magician shuffles the deck and asks a different person to choose a card.

Are these two events dependent or independent?

• Dependent

• Independent

Maura picks a marble at random. Without putting the first marble back, she picks a second marble at random.

Are these two events dependent or independent?

• Dependent

• Independent

During P.E. class, one team is picking softball gloves from the class bucket. Bryce chooses a glove first, followed by Arianna.

Are these two events dependent or independent?

• Dependent

• Independent

A gumball machine is filled with a mixture of blue and purple gumballs. Christina purchases a gumball, and then Lee does.

Are these two events dependent or independent?

• Dependent

• Independent

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

Are these two events dependent or independent?

• Dependent

• Independent

For homework, a teacher instructs her students to choose a county in their state for a social studies project. Since they live in a small state, repeats are allowed.

• Dependent

• Indepene\dent

Jamie and Mackenzie pick chairs at the same dinner table. Jamie picks first, and Mackenzie goes second.

• Dependent

• Independent