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Snowfall and Lift Lines

Students make and interpret ski-resort scatter plots, examining paired records, clusters, outliers, and linear and nonlinear patterns.

Grade 8MathInteractive · Printable

Aligned to8.SP.A.1

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What’s included

Single worksheet
Auto-graded online
1 Common Core standard
Printable answer key
13 questions
Classroom-ready

Details

Format: Interactive · Printable
Grade: Grade 8
Subject: Math
Question types: Fill in the blank, Multiple choice, Circle the answer, Short answer, Drawing

About this worksheet

What students practice

Students construct a scatter plot from paired snowfall and lift-wait records.
Students identify clusters, outliers, and positive or negative associations in scatter plots.
Students distinguish approximately linear, nonlinear, and no apparent association patterns.

How to use

Have students plot the paired records before comparing the resort displays. Discuss how an overall pattern differs from an exact prediction.

Curriculum

Common Core standard covered

8.SP.A.1

Make and read scatter plots of paired data, and describe patterns like clusters, outliers, positive or negative, and linear or not.

Preview

OwlSheets.com

Name Date

Snowfall and Lift Lines

Build scatter plots and investigate patterns in resort records.

Morning Snowfall Records

Each record pairs overnight snowfall with the lift wait at 10 a.m. on the same day. Keep each pair together.

Make a scatter plot of all eight records. Use snowfall for the horizontal axis and wait time for the vertical axis. Do not connect the points.

Eight Resort Mornings
Snowfall (in.)	Wait (min)
0	1
1	2
2	2
3	4
5	5
6	7
8	8
9	3

Before plotting, Eli sorts the snowfall values from least to greatest. What must he do with the wait times?

A. He must sort the wait times separately from greatest to least.
B. He must keep each wait time with its original snowfall value.
C. He must replace the wait times with their average value.
D. He must sort the wait times separately from least to greatest.

Select the two statements that accurately describe the records in question 1.

Seven points follow an approximately straight, upward pattern.The point (9, 3) lies well below the pattern of the other points.Every increase in snowfall is paired with an increase in wait time.The points form an approximately straight, downward pattern.

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