Probability Independent or Dependent Events

If you flip a coin two times, 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

If you spin two times, what is the probability of landing on green both times? (leave answer in fraction form in lowest terms)

• 1/6

• 1/9

• 1/36

• 1/30

What is the probability of picking a red marble and keeping it, picking another red marble and keeping it, then picking a blue marble? (leave answer in fraction form in lowest terms)

• 2/105

• 4/343

• 2/63

• 4/210

A quiz contains 5 true or false questions. If you forgot to study and do not know the answer to them and guess, what is the probability of getting all 5 of them correct? (leave answer in fraction form in lowest terms)

• 1/60

• 1/32

• 1/2

• 1/6

You are playing a game of scrabble. The tiles shown are dropped in a bag. You need to choose two tiles. What is the probability of choosing an "E", keeping it, and then choosing a "H"?

• 4/15

• 1/70

• 1/75

• 1/225

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?
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

Suppose a number cube is rolled twice. What is the probability that an odd number will show both times?

• 1/3

• 1/2

• 1/6

• 1/4

What is the probability of rolling an even number on the first roll of a number cube and rolling an odd number on the second roll? Are these events independent or dependent?

• Independent

• Dependent