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Christmas Data Variables

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Christmas Data Variables

Help plan a fair and respectful Christmas data investigation. Read each question carefully. You can use the ideas in the table to answer the questions.

The investigation team

A group of Year 4 students wants to find out which Christmas fruit people in their class would choose for a shared summer picnic.

1.The students want to learn what fruit their classmates would choose. Who is the group of interest?
  • All the people who live in New Zealand
  • The students in their Year 4 class
  • People who grow fruit
2.For this investigation, what is the variable being collected?
  • Each classmate's chosen picnic fruit
  • The name of each classmate
  • The number of days until Christmas
3.Which question would collect useful data for the investigation?
  • Would you rather eat strawberries, cherries, watermelon or mandarins at the picnic?
  • Do you like picnics?
  • What is your full name and home address?

A small class survey

Here are the answers from eight classmates. Each person chose one favourite picnic fruit.

Strawberries

Watermelon

Mandarins

Strawberries

Cherries

Watermelon

Strawberries

Mandarins

4.Which fruit was chosen most often in the class survey?
5.How many classmates chose mandarins?
6.Which fruit was chosen least often, and how many classmates chose it?
7.Nikau says, “Watermelon was more popular than mandarins.” Is Nikau correct? Use the survey answers to explain.
8.The students want to ask another Year 4 class. Write one clear question they could ask to collect the same kind of data.

Collect data respectfully

Good investigations are fair and respect the people who take part.

9.Choose the best way to invite a classmate to take part in the fruit survey.
  • “You have to answer my question now.”
  • “Would you like to answer a quick fruit question? You can say no.”
  • “Tell me your choice, and I will tell everyone who picked it.”
10.A classmate does not want to answer. What should the survey team do?
11.The team has finished the survey. Which detail should they leave off a class results chart?
  • How many people chose each fruit
  • The fruit choices
  • Classmates' full names beside their choices

3 printable pages

  • Christmas Data Variables, page 1 of 3: The investigation team

    Page 1

  • Christmas Data Variables, page 2 of 3: A small class survey

    Page 2

  • Christmas Data Variables, page 3 of 3: Collect data respectfully

    Page 3

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