Linear Regression

What kind of correlation?

• Positive
• Negative
• No

Tags

TEKS.MATH.A.3B

What kind of correlation?

• Positive
• Negative
• No

Tags

TEKS.MATH.A.3B

What kind of correlation?

• Positive
• Negative
• No

Tags

TEKS.MATH.A.3B

Describe the relationship between the variables.

• A) Weak positive correlation

• B) Weak negative correlation

• C) Strong positive correlation

• D) Strong negative correlation

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8

r=-0.89

• Strong positive 
• Weak positive 
• Strong negative 
• Weak negative 

Tags

CCSS.HSS.ID.C.8

r=0.3

• Strong positive 
• Weak positive
• Strong negative
• Weak negative 

Tags

TEKS.MATH.A.3B

What type of correlation does this graph show?

• Positive correlation

• Negative correlation

• No correlation

• Constant correlation

Tags

TEKS.MATH.A.3B

The linear regression equation is y = 61.93x - 1.79.  According to the model, the slope can be interpreted as:

• After 0 hours of driving, they went 61.93 miles.
• They drove at a speed of 61.93 miles per hour.
• They drove 61.93 miles total.
• They drove 61.93 hours total.

Tags

TEKS.MATH.A.3B

TEKS.MATH.A.3C

A restaurant sells pizza for the prices in the data table.  Calculate the linear regression equation of the data.

• y = 1.5x + 12
• y = 12x + 1.5
• y = 0.67x - 8
• y = -8x + 0.67

Tags

TEKS.MATH.A.5C

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books.  Use the trend line to predict how many chapters would be in a book with 180 pages. 

• 12 chapters
• 15 chapters
• 18 chapters
• 21 chapters

Tags

CCSS.HSA.CED.A.2

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7