The table below lists the areas (in square kilometers) of all 19 counties in western Washington.countyareaClallam4520Clark1626Cowlitz2949Grays Harbor 4966Island 540Jefferson4685King5507Kitsap1026Lewis6236Mason2489Pacific2524Pierce4340San Juan 453Skagit4494Skamania4290Snohomish5414Thurston1883Wahkiakum 684Whatcom5491Compute each of the following summary statistics. Use Excel - copy/paste the data. (round your answers to the nearest km2).median = km2IQR = km2mean = km2standard deviation = km2

Name: The table below lists the areas (in square kilometers) of all 19 count
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Description: The table below lists the areas (in square kilometers) of all 19 counties in western Washington.countyareaClallam4520Clark1626Cowlitz2949Grays Harbor 4966Island 540Jefferson4685King5507Kitsap1026Lewis6236Mason2489Pacific2524Pierce4340San Juan 453S

The data can be entered in the excel as

Answered: county area Clallam 4520 Clark 1626…

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The table below lists the areas (in square kilometers) of all 19 counties in western Washington.

county	area
Clallam	4520
Clark	1626
Cowlitz	2949
Grays Harbor	4966
Island	540
Jefferson	4685
King	5507
Kitsap	1026
Lewis	6236
Mason	2489
Pacific	2524
Pierce	4340
San Juan	453
Skagit	4494
Skamania	4290
Snohomish	5414
Thurston	1883
Wahkiakum	684
Whatcom	5491

Compute each of the following summary statistics. Use Excel - copy/paste the data. (round your answers to the nearest km²).

median =  km²

IQR =  km²

mean =  km²

standard deviation =  km²

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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