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Resources

Identify independent and dependent events

Identify whether the following situations is dependent or independent. You flip a coin and then roll a fair six-sided die. The coin lands heads-up and the die show a one.

Mark and Darren are playing a game with dice. Mark rolls the dice first, and Darren rolls second. Are these two events dependent or independent? Choices:

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Dana and Alice get haircuts from the same stylist. Dana calls before lunch to book one of the open appointment times. After lunch, Alice calls and chooses from among the remaining appointments. Are these two events dependent or independent?

Janelle has a variety of socks in her laundry basket. Without looking, she selects one sock, then a second.

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Are these two events dependent or independent?

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(B) independent

Marshall and Dave take turns rolling a die to see who will get to use their family's shared computer. Marshall rolls first. Then, Dave rolls.

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Are these two events dependent or independent?

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(B) independent

Martina and Regan go to the library to check out books for a book report.

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Are these two events dependent or independent?

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(B) independent

Darrell spins a spinner. At the same time, Logan rolls a

20

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Are these two events dependent or independent?

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In a card game, Rhianna picks a card from a deck, but does not put it back into the deck. Afterward, Abigail picks a card from the deck.

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Are these two events dependent or independent?

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(B) independent

The children in Bobby's family are trying on costumes from a costume trunk in the attic. Bobby chooses a costume, and then Zoe, his sister, chooses next.

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Are these two events dependent or independent?

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(B) independent

Students in a fifth grade class are writing reports on famous inventors. Each student may choose one inventor from a list. The teacher does not want any repeats. Maddie chooses first, followed by Zack.

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Are these two events dependent or independent?

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(B) independent

During P.E. class, one team is picking softball gloves from the class bucket. Paula chooses a glove first, followed by Levi.

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Are these two events dependent or independent?

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(B) independent

In Ms. Li's class, the students pick unique numbers from a hat to decide the order in which they will present their group projects. David picks a number first, and Alexandra picks second.

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Are these two events dependent or independent?

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(B) independent

Two friends, who are getting married in the same month, are shopping for wedding dresses together. They want to be sure not to get the same dress.

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Are these two events dependent or independent?

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(B) independent

At a fundraising event, Katie is drawing raffle tickets to determine winners. Katie has already drawn a ticket for the first prize, and will next draw a name for the second prize.

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Are these two events dependent or independent?

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(B) independent

Maddie and her little brother are coloring. Maddie picks a crayon from the box and then her little brother picks one.

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Are these two events dependent or independent?

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(B) independent

Vincent's family just bought a variety pack of cereal that contains one serving of each type of cereal. Vincent picks a cereal to have for breakfast, and then his brother picks one.

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Are these two events dependent or independent?

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(B) independent

A third grade teacher is assigning parts for the class play. Spencer's role will be selected first, and Chandler will be assigned a role next.

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Are these two events dependent or independent?

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(B) independent

During an election, voters go into a private voting booth to vote for the president. Jayce votes in the morning, and Kate votes later in the afternoon.

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Are these two events dependent or independent?

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(B) independent