1-5: Scatter Plots Essential Question: How would you explain the process for graphing a point on a...
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Transcript of 1-5: Scatter Plots Essential Question: How would you explain the process for graphing a point on a...
1-5: Scatter Plots
Essential Question: How would you explain the process for graphing a point on a coordinate plane?
1-5: Scatter Plots A scatter plot is a graph that relates two
groups of data. Example 1: Making a scatter plot
The table below shows data about how students did on a test and how much homework they watched the previous day.
1 2 3 4 5
20
40
60
80
100
Hours watching TV
Test
Sco
re
1-5: Scatter Plots Your Turn
Use the data in the table below. Make a scatter plot of newspaper circulation and the number of households with television.
20 40 60 80 100
20
40
60
80
100
Daily Circulation (millions)
House
hold
s w
ith
Tele
vis
ion (
mill
ions)
1-5: Scatter Plots You can use scatter plots to find trends in
data. There are four types of relationships two sets of data may have.
When both sets of data increase together, it is considered a positive correlation
When one set of data increases whilethe other decreases, it is called anegative correlation
1-5: Scatter Plots You can use scatter plots to find trends in
data. There are four types of relationships two sets of data may have.
Sometimes, data sets are not relatedThis is no correlation
Undefined correlation occurswhen one set of data shows nochange
1-5: Scatter Plots A trend line on a scatter plot can show
correlations more clearly.
1-5: Scatter Plots Example 2: The scatter plot shows the age
and asking price of several used mid-sized cars. What type of relationship does the scatter plot show?
a) A negative correlation
b) No correlation
c) An undefined correlation
d) A positive correlation
1-5: Scatter Plots Assignment
Worksheet 1-5 All problems