Unit 5, Lesson 21

Describing Trends in Scatter Plots

Accelerated 7

Practice

1. Problem 1

   Student Task Statement

   For the same data, two different models are graphed. Which model more closely matches the data? Explain your reasoning.

   

   A scatterplot labeled A. Horizontal, from 37 point 5 to 112 point 5, by 12 point 5’s. Vertical, from 0 to 200, by 40’s. 19 data points above and below line, trend linearly upward and right, 6 points on line. The line begins at about 50 comma 70 and ends at about 100 comma 150.

   

   A scatterplot labeled B. Horizontal, from 37 point 5 to 112 point 5, by 12 point 5’s. Vertical, from 0 to 200, by 40’s. 19 data points above and below line, trend linearly upward and right, 3 points on line. The line begins at about 50 comma 60 and ends at about 100 comma 140.