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Directions Use the graph below to answer questions 11 and 12.
The graph shows the water level of Lake Pancratz on the first day of each month
during a four-year period.
Water Levels of Lake Pancratz
Water Level (feet above sea level)
575.0
574.5
574.0
573.5
573.0
572.5
572.0
0
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Month
11 In which month did the water level vary
the least in years 1 through 47
A February
B May
C August
D November
E December
Mathematics
12
PAGE 40
KEY
J 572.5
K 573.0
L 573.5
M 574.0
N 574.5
Which number represents the best
estimate of the average water level,
in feet above sea level, across all
months for these four years?



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