Splash Screen. Five-Minute Check (over Lesson 9–8) Main Idea and Vocabulary Concept Summary: Types of Relationships Example 1: Identify a Relationship Example 2: Identify a Relationship Example 3: Line of Fit Example 4: Line of Fit Example 5: Line of Fit. Lesson Menu.
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Explain whether a scatter plot of the data for the number of cups of hot chocolate sold at a concession stand and the outside temperature might show a positive, negative, or norelationship.
As the temperature decreases, the number of cups of hot chocolate sold increases. Therefore, the scatter plot might show a negative relationship.
Answer: negativeExample 1
PRODUCTION The table to the right shows the average hourly earnings of production workers since 2000. Make a scatter plot using the data. Then draw a line that seems to best represent the data.Example 3
ZOOSThe graph shows the average and maximum longevity of various animals in captivity. Use the equation to predict the maximum longevity for an animal with an average longevity of 33 years.
Line of FitExample 5
(over Lesson 9-8)
The graph shows the number of points scored for the first seven weeks of football season. What is the average number of points scored during the first seven weeks? Round your answer to the nearest tenth.
A. 145 points B. 24.2 points
C. 20.7 points D. 10.7 pointsFive Minute Check 4