How many of the lakes have E. coli levels greater than the mean? (Enter your answer as a whole number.) Number of lakes that have E.coli levels greater than the mean: What feature of the data explains the fact that the mean is greater than most of the observations? The mean is greater than most of the observations because it is greater than the median. The mean is greater than most of the observations because of the two outliers (291.0 and 190.4). The mean is greater than most of the observations because it is a resistant measure of center. The mean is greater than most of the observations because of the two outliers (1.0 and 8.6).
How many of the lakes have E. coli levels greater than the mean? (Enter your answer as a whole number.) Number of lakes that have E.coli levels greater than the mean: What feature of the data explains the fact that the mean is greater than most of the observations? The mean is greater than most of the observations because it is greater than the median. The mean is greater than most of the observations because of the two outliers (291.0 and 190.4). The mean is greater than most of the observations because it is a resistant measure of center. The mean is greater than most of the observations because of the two outliers (1.0 and 8.6).
Algebra for College Students
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Chapter11: Systems Of Equations
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Transcribed Image Text:How many of the lakes have E. coli levels greater than the mean? (Enter your answer as a whole number.)
Number of lakes that have E.coli levels greater than the mean:
What feature of the data explains the fact that the mean is greater than most of the observations?
O The mean is greater than most of the observations because it is greater than the median.
O The mean is greater than most of the observations because of the two outliers (291.0 and 190.4).
O The mean is greater than most of the observations because it is a resistant measure of center.
O The mean is greater than most of the observations because of the two outliers (1.0 and 8.6).
Question Source: Moore, The Basic Practice Of Statistics, 8e | Pul
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Transcribed Image Text:10
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To investigate water quality, the Columbus Dispatch took water specimens at 16 Ohio State Park swimming areas in central
Ohio. Those specimens were taken to laboratories and tested for E. coli, which are bacteria that can cause serious
gastrointestinal problems. For reference, if a 100-milliliter specimen (about 3.3 ounces) of water contains more than 130 E.
coli bacteria, it is considered unsafe. The E. coli levels per 100 milliliters found by the laboratories are presented in the
table:
291.0
10.9
47.0
86.0
44.0
18.9
1.0
50.0
190.4
45.7
28.5
18.9
16.0
34.0
8.6
9.6
To access the complete data set, click the link for your preferred software format:
Excel Minitab JMP SPSS TI R Mac-TXT PC-TXT CSV CrunchIt!
Find the mean E. coli level.
Mean E.coli level (rounded to two decimal places)
%D
per 100 ml
Question Source: Moore, The Basic Practice Of Statistics, 8e | Pub
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