Independent or Dependent Probability

Dependent probability happens when the first item is not replaced, causing the total outcomes to decrease by 1.

• true

• false

Is the event INDEPENDENT or DEPENDENT?

Amy is playing a card game. She picks a card at random. Then without putting the first card back, she picks a second card at random.

• Independent

• Dependent

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

Find the probability if you pick a card, do not replace it, then pick another card. What is the probability of both cards being black?

• 15/56

• 5/14

• 3/28

Each letter of the word Banana is written on a card. Find each probability if you pick two cards without replacing the first. What is the probability of picking and N and then an A?

p(N, then A)

• 1/15

• 1/5

• 1/10

• 2/3

Each letter of the word Banana is written on a card. Find each probability if you pick two cards without replacing the first. What is the probability of picking an A and then a B?

• 1/15

• 1/5

• 1/10

• 3

If you flip a coin two times, is it independent or dependent probability?

• Independent

• Dependent

If you flip a coin then roll a number cube, is it independent or dependent probability?

• Independent

• Dependent

If you draw out a red marble, keep it, then draw out a blue marble, is it independent or dependent probability?

• Independent

• Dependent

Independent probability happens when the probability of the first event does not affect the probability of the second event.

• True

• False