Probability on Multiple Events

Randy has 4 pennies, 3 nickels, and 3 dimes in his pocket. If he randomly chooses 2 coins without replacement, what is the probability they are both dimes. 

• 1/15

• 2/27

• 3/19

• 4/21

Ricardo has the spinner pictured here and a bag of marbles filled with 2 red marbles, 3 green marbles, and 3 blue marbles. What is the probability that Ricardo spins red on the spinner and picks a red marble out of the bag?

• 1 ⁄ 16

• 1 ⁄ 2

• 1 ⁄ 4

• 1 ⁄ 8

In a standard deck of 52 cards, what is the probability of drawing one ace after another ace on two draws (no replacing)?

• 1/221

• 1/4

• 1/169

• 1/13

If you draw one card from a standard deck, what is the probability of drawing a spade or a red card?  Are the events inclusive or mutually exclusive?

• Inclusive

• Mutually exclusive

What is the probability of the arrow stopping on “X” on the first spin and “F” on the second spin?

• 5/6

• 1/36

• 1/3

• 1/6

You roll a 2 on a number cube and spin a 3 on a spinner. Is an example of __________ event?

• Independent

• Depenedent

You roll a number cube and get a 6, and roll again if the first roll is a 6. Is an example of __________ event?

• Independent

• Depenedent

You choose a class member for your study group, then choose an additional classmate. Is an example of __________ event?

• Independent

• Depenedent

What is P(A and B) if P(A) = 1/2 and P(B) = 2/7, where A and B are independent events?

• 1/7

• 1/12

• 5/8

• 1/2

What is the probability of rolling a 4 on a fair number cube and getting “tails” when tossing a coin?

• 1/7

• 1/12

• 5/8

• 1/2