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Name _____________________________________________ Date ____________________ Period ________
Accelerated Algebra 1
Scatter Plots Day 1 Homework
Circle the word or phrase in column B that has the same meaning as the word in Column A.
Column A
Column B
1. correlation
relationship
y-intercept
ordered pairs
2. data points
x-intercept
ordered pairs
linear
3. plotting
relationship
graphing
y-intercept
4. best trend line
line of best fit
positive slope
ordered pairs
5. Describe the difference between a line of best fit that has a positive correlation and a line that has a
negative one. Draw an example of each.
Make a scatter plot, by hand, and describe the correlation.
6. (1, 2), (2, 4), (3, 7), (4, 6), (5, 9)
7. (1, 9), (2, 8), (3, 4), (6, 3), (8, 5)
8. Make a scatter plot in your calculator and describe the correlation.
Life Expectancy for People Born in Various Years
Year
1950
1960
1970
1980
1990
2000
2002
Life Expectancy
68.2
69.7
70.8
73.7
75.4
76.9
77.3
SOURCE: National Center for Health Statistics