Data Plot

What type of correlation does this graph have?

• positive

• negative

• none

• all of the above

Which equation best represents the data?

•  y= -3/5x + 2

•  y = 5/3x -2 

•  y = -3/5x - 2

•  y= 5/3x + 2

Which equation best represents the data?

•  y = 2x + 2

•  y= 1/2x - 2

•  y = -2x + 2

•  y = -1/2x + 2

Which equation best represents the data?

•  y = x + 2

•  y = -x + 2

•  y = x - 2

•  y = -x - 2 

What is a trend line that shows the most accurate relationship between x and y and is is very close to most of the data points?

• linear regression

• no correlation

• trend line

• line of best fit

Tags

CCSS.8.EE.B.5

What is a scatter plot?

• A graph that shows the relationship of two data sets.

• A graph drawn using rectangular bars to show how large each value is.

• A graph that shows information that is connected in some way.

• A graph that shows data changing over time.

Looking at the graph, what is the correlation between the x and y variables?

• y increases as x increases

• y is constant

• y decreases as x descreases

• y decreases as x increases

Which scatterplot most likely has a line of best fit represented by y = - 2x + 1

• W

• X

• Y

• Z

Tags

CCSS.8.EE.B.5

About how many male math teachers were there in 2006?

• 15

• 30

• 35

• 45

Tags

CCSS.HSN.VM.C.6

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 140 pages. 

• 12 chapters

• 19 chapters

• 14 chapters

• 21 chapters