11/3 Lesson 13-1 Scatter Plots & Trend Lines

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.

Tags

CCSS.HSS.ID.B.6

What type of correlation does this graph have?

• positive

• negative

• none

• all of the above

What is the type of correlation?

• Negative

• no correlation

• positive

What type of correlation does this scatter plot show?

• positive linear

• negative linear

• no correlation

What is a line of best fit used for?

• To make predictions
• To make the graph look pretty
• To connect the points

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

How can you tell if the association on a scatter plot is strong or weak?

• By observing how large the y-intercept is.

• By observing whether the association is positive or negative.

• By observing how closely the points of the scatter plots are to one another.

• By observing whether or not the scatter plot is linear.

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8

Choose the graph with a trend line that best fits the data.

• graph 1

• graph 2

• graph 3

• graph 4

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

CCSS.HSS.ID.C.8

the slope is -5/7, what does that mean?

• gain 5 hour of sleep for 7 cups of coffee
• lose 5 hours of sleep for 7 cups of coffee
• lose 7 cups of coffee for 5 hours of sleep
• lose 5 cups of coffee for 7 hours of sleep

Tags

CCSS.HSF.LE.B.5

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 pages would be in a book with 6 chapters. 

• ≅100 pages
• ≅170 pages
• ≅60 pages
• ≅20 pages

Tags

CCSS.HSA.CED.A.2

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

As x increases, y increases is?

• correlation coefficient

• causation

• positive correlation

• negative correlation