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Independent & Dependent Events

Total questions: 9

Worksheet time: 45mins

Name
Class
Date
1.
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
b)
Dependent
2.

Are the events INDEPENDENT or DEPENDENT?

Finding your calculator is not working and finding your refrigerator is not working

a)

Independent

b)

Dependent

3.
Is the event INDEPENDENT or DEPENDENT?
The spinner is spun twice.  What is the probability that it lands on red first and then blue?
a)
Independent
b)
Dependent
4.

Two marbles are drawn from a container in such a way that the first marble drawn is replaced before selecting the second marble. Are the two events independent or dependent?

a)

Independent

b)

Dependent

5.

Is the event INDEPENDENT or DEPENDENT? Amy plays card games.  She picks a card at random.  Then without putting the first card back, she picks a second card at random.

a)

Independent

b)

Dependent

6.

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?

a)

Independent

b)

Dependent

7.

Are the events INDEPENDENT or DEPENDENT?

Driving on ice and having an accident

a)

Independent

b)

Dependent

8.

You flip a coin and then roll a fair six-sided die. The coin lands tails-up and

the die shows an odd number.

a)

Independent

b)

Dependent

9.

A cooler contains fourteen bottles of sports drink: seven lemon-lime flavored

and seven orange flavored. You randomly grab a bottle and give it to your friend.

Then, you randomly grab a bottle for yourself. Your friend gets a lemon-lime

and you get an orange.

a)

Independent

b)

Dependent