Exit Ticket 9/25

Each year, the State of Florida collects data on the price per box for each type of orange. A mathematician for a grower’s association analyzed the data for the years 2011-2020 for a certain variety of orange. Some of the data is shown. 

The mathematician found the equation y=0.4x+7.21 models the data. 

Based on the model, what is the price in 2020 for a box of oranges

• 8.21

• 10.81

• 10.41

• 12.21

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CCSS.HSA.CED.A.2

CCSS.HSS.ID.C.7

CCSS.HSA.CED.A.1

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

A veterinary office tracked the height and weight of various dogs. The scatter plot shows some of the data and the equation for the line of best fit, y=2.26x-31.23, where x represents the dog’s height, in inches, and y represents the total weight of the dog, in pounds.

Based on the given model, what is the approximate height of a dog that weighs 35 pounds? Round to the nearest inch. 

Height of 35 pound dog= ______________ inches

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CCSS.HSA.CED.A.2

CCSS.HSA.REI.B.3

 A researcher for a music company researched the sales, in millions of dollars, of music CDs, for x years from 1990 to 2010. The researcher used some of the data for the years 1990-2010 to determine the line of best fit. A graph of the residuals are shown.

Given this information, complete the following statement to describe the strength of this linear relationship. 

The strength of the linear relationship is:

• strong

• weak

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CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8

 A researcher for a music company researched the sales, in millions of dollars, of music CDs, for x years from 1990 to 2010. The researcher used some of the data for the years 1990-2010 to determine the line of best fit. A graph of the residuals are shown.

Given this information, complete the following statement to describe the strength of this linear relationship. 

The residual values are:

• Relatively small and randomly scattered around the x-axis

• Relatively small and show a pattern

• Relatively large and randomly scattered around the x-axis

• Relatively large and show a pattern

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CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8

The scatter plot shows the high temperatures, in degrees Fahrenheit for the month of January in Orlando, Florida.Select all the points that would result in a positive residual.

• Point A

• Point B

• Point C

• Point D

• Point E

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CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

Describe this scatter plot

• mid strong correlation

• weak negative correlation

• strong negative correlation

• no correlation

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CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8