Dependent or Independent Events

A bag contains some red-colored and some blue-colored marbles. First a red-colored marble is drawn and then, without replacing the first marble, a blue-colored marble is drawn. Are the two events dependent or independent?

• Independent

• Dependent

Two marbles are drawn from a container in such a way that the first marble drawn is replaced before selecting the second marble. Does the outcome of the first draw affect the outcome of the second?

• Yes

• No

Determine if the following events are dependent or independent.
Anna flips a coin two times.

• Independent

• Dependent

A coin is tossed and a number cube is rolled. Find the probability,  P(heads and 7).

• 1/14

• 1/2

• 0

• 1/7

Match the following based on whether it would independent or dependent probability.

• Dependent

• Selecting 2 students for Knights at the Round Table

• Dependent

• Taking a piece of candy from a bag, eating it, then picking another

• Independent

• Taking a marble out of a bag, replacing it, then picking another

• Independent

• Spinning a spinner and rolling a die

• Independent

• Flipping 2 coins

Is the event INDEPENDENT or DEPENDENT?
If two gumballs are purchased, what is the probability that they are both white?

• Independent

• Dependent

Independent events: the occurrence of one event ​ (a)   the probability of another event

Dependent events: the occurrence of one event ​ (b)   the probability of another event (sometimes called “not independent”)

• does not affect

• does affect

Determine if each event represents dependent or independent probability.

• independent

• dependent

A bag contains some red-colored and some blue-colored marbles. First a red-colored marble is drawn and then, without replacing the first marble, a blue-colored marble is drawn. Are the two events dependent or independent? (a)  

• Independent

• Dependent

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