Probability of Dependent Events

Sue will randomly select from a treat bag containing 6 lollipops and 4 gum balls. Sue will select a treat, not replace it, and then select a second treat.

• Independent

• Dependent

A jar contains 4 white playing chips, 5 purple chips, and 1 black chip. Chips are selected randomly one at a time, and are not replaced. Find P(purple then black)

• 1/18

• 2/5

• 3/7

• 4/9

An event is DEPENDENT, if...

• The first event has no affect on the next event

• The first event affects the second event

Is the event INDEPENDENT or DEPENDENT?

Amy plays card games. She picks a card at random. Then without putting the first card back, he picks a second card at random.

• Independent

• Dependent

Each letter of the word Banana is written on a card. Find each probability if you pick two cards without replacing the first.

• 2/30

• 6/30

• 3/30

• 0

Each letter of the word Banana is written on a card. Find each probability if you pick two cards without replacing the first.

p(N, then N)

• 2/30

• 6/30

• 3/30

• 0

Each letter of the word Banana is written on a card. Find each probability if you pick two cards without replacing the first.

• 2/30

• 6/30

• 3/30

• 0

This jar contains 20 pieces of bubble gum. The green ones are Tisha's favorite flavor. Her teacher told her she can have two pieces. What is the probability she will randomly pick two green?

• 1/4

• 1/2

• 9/38

• 18/45

Two cards are drawn without replacement. What's the probability of drawing two blue cards?

• 1

• 1/3

• 2/9

• 2/6

Each letter of the word Banana is written on a card. Find each probability if you pick two cards without replacing the first.

• 2/30

• 6/30

• 3/30

• 0