Data Test Review

• positive trend
• negative trend
• no trend

Is this line an accurate line estimate of best fit for the data?

• Yes

• No

Which line is the best line of best fit?

• a

• b

• c

• i don't see any lines

What is the equation of the line of best fit?

• y= 2x

• y=3x+7

Which scatter plot shows a linear relationship between x and y?

• Graph A

• Graph B

• Graph C

• Graph D

What is the equation of the line of best fit

• y= -2x + 10

• y= 10x+ 2

• y=2x+10

• y= 10

Which sentence describes the relationship shown on this scatter plot?

• As the temperature decreases, the visitors increase.

• As the temperature increases, the number of visitors increases.

• As the visitors increase, the temperature decreases.

• No correlation

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

If Joe worked 30 hours, how much is he expected to earn?

• $600
• $200
• $1000
• $800

About how many male math teachers were there in 2006?

• 15
• 30
• 35
• 45