Independent and Dependent Practice

• The dependent variable is total cost
• The dependent variable is weight
• The independent variable is total cost
• The independent variable is cost of a package

• the independent variable is distance
• the independent variable is d=25 t
• the dependent variable is time
• the dependent variable is distance

On a graph, which axis shows the independent variable?

• x-axis

• y-axis

• neither

• it changes

The time spent working depends on the amount earned.

• True

• False

On a graph, which axis shows the dependent variable?

• x-axis

• y-axis

• neither

• it changes

Is the event INDEPENDENT or DEPENDENT?
You have a jar with 24 pieces of chocolate candy and 14 pieces of orange candy.  We take one piece of candy at random from the jar, put it back, and then take a second piece of candy at random from the jar.

• 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, she picks a second card at random.

• 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

Which event is not a dependent event?

• Picking 2 students to be the line leader and the door holder from a group of 20 students

• Picking 2 marbles from a bag without replacing the first marble

• Picking 2 crayons from a box without putting any back

• Picking an earring, replacing it, then picking a 2nd earring

Emily will randomly select one card from the deck, not replace it, and then randomly select a 2nd card. What is the probability that she will select a blue and then a red? Write your answer as a percent.

• 3%

• 18%

• 2.88%

• 4.7%