Scatter Plots, Trend Lines, and Two Way Table Review

Why is it important to consider the context of the data when interpreting a scatter plot?

• Because the context can explain outliers.

• Because the scale of the axes can be misleading.

• Because the context can provide insights into the nature of the relationship.

• Because without context, the data points are meaningless.

What is the best way to display data when you want to show how two variables are related over a period of time?

• pie chart.

• bar graph.

• scatter plot.

• histogram.

Which scatter plot could have a trend line whose equation is y hat= 3x + 10?

• A

• B

• C

• D

Tags

CCSS.HSF.LE.B.5

How can you identify an outlier in a scatter plot?

• It is the point closest to the y-axis.

• It is a point that does not fit the pattern of the rest of the data.

• It is the highest point on the plot.

• It is the point at which the trend line changes direction.

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 association.

Sammy is selling his comic book collection on the internet. The scatterplot shows how many comic books he has left at the end of each day. Using the trend line, how many comic books should Sammy have left after 6 days?

• 15

• 10

• 30

• 8

Which scatter plot could have a trend line whose equation is y = 3x + 10?

• A

• B

• C

• D

Tags

CCSS.8.EE.B.5

What type of association does this graph show?

• Positive

• negative

• none

• all of the above

What is the relative frequency (to the nearest percent) of boys among those who cannot bike to school? 

• 4%

• 14%

• 13%

• 29%

About how many male math teachers were there in 2006?

• 15

• 30

• 35

• 45

Tags

CCSS.HSF.IF.B.4