EXERCISE NO. 1 The concentration of suspended solids in river water is important an environmental characteristic. The paper “ Water Quality in Agricultural Watershed: Impact of Riparian Vegetation During Base Flow" reported on concentration (in parts per million, or ppm) for several different rivers. Suppose the following 50 observations had been obtained for a particular river. 55.8 42.3 60.9 37.0 91.3 65.8 33.8 39.1 60.6 35.5 61.5 76.0 69.0 45.9 56.0 47.2 44.6 71.7 61.2 40.0 74.5 83.2 31.7 36.7 62.3 43.7 94.6 71.4 56.3 30.0 68.2 75.3 65.2 78.8 59.1 27.1 52.6 58.2 48.0 61.8 39.8 65.0 60.7 77.1 49.5 69.3 69.8 64.9 87.1 66.3
EXERCISE NO. 1 The concentration of suspended solids in river water is important an environmental characteristic. The paper “ Water Quality in Agricultural Watershed: Impact of Riparian Vegetation During Base Flow" reported on concentration (in parts per million, or ppm) for several different rivers. Suppose the following 50 observations had been obtained for a particular river. 55.8 42.3 60.9 37.0 91.3 65.8 33.8 39.1 60.6 35.5 61.5 76.0 69.0 45.9 56.0 47.2 44.6 71.7 61.2 40.0 74.5 83.2 31.7 36.7 62.3 43.7 94.6 71.4 56.3 30.0 68.2 75.3 65.2 78.8 59.1 27.1 52.6 58.2 48.0 61.8 39.8 65.0 60.7 77.1 49.5 69.3 69.8 64.9 87.1 66.3
EXERCISE NO. 1 The concentration of suspended solids in river water is important an environmental characteristic. The paper “ Water Quality in Agricultural Watershed: Impact of Riparian Vegetation During Base Flow" reported on concentration (in parts per million, or ppm) for several different rivers. Suppose the following 50 observations had been obtained for a particular river. 55.8 42.3 60.9 37.0 91.3 65.8 33.8 39.1 60.6 35.5 61.5 76.0 69.0 45.9 56.0 47.2 44.6 71.7 61.2 40.0 74.5 83.2 31.7 36.7 62.3 43.7 94.6 71.4 56.3 30.0 68.2 75.3 65.2 78.8 59.1 27.1 52.6 58.2 48.0 61.8 39.8 65.0 60.7 77.1 49.5 69.3 69.8 64.9 87.1 66.3
Calculate the Mean, Median, and Modeof the given data. (Apply the grouped data method for this activity).
Transcribed Image Text:EXERCISE NO. 1
The
concentration
of suspended solids
in river
water is an
important
environmental characteristic. The paper “ Water Quality in Agricultural Watershed:
Impact of Riparian Vegetation During Base Flow" reported on concentration (in parts per
million, or ppm) for several different rivers. Suppose the following S0 observations had
been obtained for a particular river.
55.8
42.3
45.9
60.9
33.8
37.0
91.3
65.8
60.6
76.0
69.0
39.1
35.5
56.0
44.6
71.7
61.2
61.5
47.2
36.7
30.0
52.6
74.5
83.2
40.0
94.6
71.4
61.8
77.1
64.9
31.7
62.3
43.7
75.3
56.3
68.2
58.2
65.0
69.3
65.2
48.0
78.8
39.8
60.7
59.1
49.5
69.8
27.1
87.1
66.3
Definition Definition Middle value of a data set. The median divides a data set into two halves, and it also called the 50th percentile. The median is much less affected by outliers and skewed data than the mean. If the number of elements in a dataset is odd, then the middlemost element of the data arranged in ascending or descending order is the median. If the number of elements in the dataset is even, the average of the two central elements of the arranged data is the median of the set. For example, if a dataset has five items—12, 13, 21, 27, 31—the median is the third item in ascending order, or 21. If a dataset has six items—12, 13, 21, 27, 31, 33—the median is the average of the third (21) and fourth (27) items. It is calculated as follows: (21 + 27) / 2 = 24.
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