Grade 8 | Unit 6: Associations in Data | End-of-Unit Assessment (B)

Jada gathered data at her school among 7th and 8th graders to see if there was an association between grade level and playing sports. The table shows her data, but the number of 8th graders who play sports is missing. Jada found there was no evidence of an association between grade level and playing sports. Which of these could be the number of 8th graders who play sports?

• 248

• 181

• 144

• 69

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8.SP.A.4

Here is a scatter plot: The graph of what linear equation is a good fit for this data?

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8.SP.A.2

Select all the relationships that demonstrate a negative association between variables.

• Number of absences from school and final grades

• Outside temperature and ice cream sales

• Price of houses and house sales

• Number of rainy days and car accidents

• Number of hours playing video games and grades

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8.SP.A.1

Draw a scatter plot that shows a negative, linear association and has one clear outlier. Circle the outlier. Draw a scatter plot that shows a positive association that is not linear.

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8.SP.A.1

Andre surveyed all 7th and 8th grade students at his school about whether they bring their lunch or eat the school lunch. Complete the missing entries in this two-way table.

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8.SP.A.4

At the school carnival, adults attended with children. Everyone had a choice between a piece of pizza and a hot dog. Here is a two-way table showing the number of adults and children who made each choice. Complete the table with relative frequency by row. Round to the nearest percent. Make a segmented bar graph to represent the data in your table. Use one bar for each row of the table.

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8.SP.A.4

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8.SP.A.2

8.SP.A.3