The Box Plot - Revision history

Ciskowski003 at 02:53, 5 May 2022

2022-05-05T02:53:45Z

2022-04-20T14:45:10Z

‎Creating a Box and Whisker plot

2022-04-20T14:44:25Z

2022-04-18T18:45:27Z

‎How to Read a Box Plot

2022-04-18T18:43:52Z

‎How to Read a Box Plot

2022-04-18T18:43:25Z

‎How to Read a Box Plot

2022-04-18T18:31:14Z

‎How to Read a Box Plot

2019-12-17T15:38:10Z

2019-12-17T15:36:21Z

‎'How-to Video

2019-12-17T15:36:03Z

← Older revision		Revision as of 02:53, 5 May 2022
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	''contributed by Jen Eraca''		''contributed by Jen Eraca''
		+
		+
		+	==How to Identify Outliers: The 1.5 x ''IQR'' Rule==
		+
		+	Call an observation an outlier if it falls more than 1.5 x ''IQR'' above the third quartile or below the first quartile. That is,
		+
		+	Low outliers < Q<sub>1</sub> - 1.5 x ''IQR''
		+
		+	High outliers > Q<sub>3</sub> + 1.5 x ''IQR''
		+
		+	Identifying outliers in a distribution is important for several reasons:
		+
		+	1. '''They might be inaccurate data values.''' Maybe someone recorded a value as 10.1 instead of 101.
		+
		+	2. '''They can indicate a remarkable occurrence.''' Kobe Bryant scored 81 points in a game.
		+
		+	3. '''They can heavily influence the values of some summary statistics,''' like the mean, range, and standard deviation.
		+
		+	Reference:
		+
		+	Daren, S. S., & Tabor, J. (2020). ''Updated version of the practice of Statistics (Teachers Edition)'' (Sixth Edition). W H FREEMAN & CO LTD.
		+
		+	''contributed by Katie Ciskowski''

@@ Line 48: / Line 48: @@
 ''contributed by Michael Minzloff''
-== Creating a Box and Whisker plot ==
+== Manually creating a box and whisker plot ==
 Box and Whisker plots show the variability of a data set. In order to make a box and whisker plot, you need to know

@@ Line 48: / Line 48: @@
 ''contributed by Michael Minzloff''
-*************************************************
+== Creating a Box and Whisker plot ==
 Box and Whisker plots show the variability of a data set. In order to make a box and whisker plot, you need to know
 Five Number Summary
 ) Least value
@@ Line 62: / Line 64: @@
 For example, if you had a set of numbers and sorted the following from least to greatest on basketball scores for your team during the school year.
 , 15, 20, 26, 27, 30, 30, 30, 33, 35, 36, 38 (least number would be 14, Q1 =23,  median =30  Q3=34 and greatest value is 38)
 Show your kids to make a number line.  In this instance, it would be counting up to 38 from 14 by 2's
 Put a dot above 14 and above 38 which are your least and greatest.
 Then put vertical lines above your Q1 which is 23, Median which is 30 and Q3 which is 34.  Connect the lines to make a box with 23, 30 and 34.  Then extend a vertical line from 23 to 14. This is the whisker because it is outside the box.  Do the same with the other side of your box which would be to extend a line from 34 to 38. That is the other whisker.
-There you have it!  You have not only learned how to read The Box Plot and but also how to create it.  A box and whisker plot.  Fun!
+There you have it!  You have not only learned how to read The Box Plot and but also how to create it.
-** ''Contributed from Tania Nicole Sutherland''**
+''contributed from Tania Nicole Sutherland''
 ==How-to Video==

@@ Line 48: / Line 48: @@
 ''contributed by Michael Minzloff''
+*************************************************
 Box and Whisker plots show the variability of a data set. In order to make a box and whisker plot, you need to know
 Five Number Summary
 ) Least value
 ) Greatest Value
 ) Quartile 1
 ) Quartile 3
 ) Median
 For example, if you had a set of numbers and sorted the following from least to greatest on basketball scores for your team during the school year.
 , 15, 20, 26, 27, 30, 30, 30, 33, 35, 36, 38 (least number would be 14, Q1 =23,  median =30  Q3=34 and greatest value is 38)

@@ Line 63: / Line 63: @@
 There you have it!  You have not only learned how to read The Box Plot and but also how to create it.  A box and whisker plot.  Fun!
-** Contributed from Tania Nicole Sutherland**
+** ''Contributed from Tania Nicole Sutherland''**
 ==How-to Video==

← Older revision		Revision as of 18:31, 18 April 2022
Line 48:		Line 48:
	''contributed by Michael Minzloff''		''contributed by Michael Minzloff''

		+	-
		+	Box and Whisker plots show the variability of a data set. In order to make a box and whisker plot, you need to know
		+	Five Number Summary
		+	1) Least value
		+	2) Greatest Value
		+	3) Quartile 1
		+	4) Quartile 3
		+	5) Median
		+	For example, if you had a set of numbers and sorted the following from least to greatest on age and years
		+	14, 15, 20, 26, 27, 30, 30, 30, 33, 35, 36, 38 (least number would be 14, Q1 =23, median =30 Q3=34 and greatest value is 38)
		+	Show your kids to make a number line. In this instance, it would be counting up to 38 from 14 by 2's
		+	Put a dot above 14 and above 38 which are your least and greatest.
		+	Then put vertical lines above your Q1 which is 23, Median which is 30 and Q3 which is 34. Connect the lines to make a box with 23, 30 and 34. Then extend a vertical line from 23 to 14. This is the whisker because it is outside the box. Do the same with the other side of your box which would be to extend a line from 34 to 38. That is the other whisker.
		+	There you have it! A box and whisker plot. Fun!

	==How-to Video==		==How-to Video==

← Older revision		Revision as of 15:38, 17 December 2019
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		+	==Boxplots==
		+
		+	Boxplots can be used to explore distribution of one continuous variable for the whole sample or, alternatively, the researcher can search for scores to be disagregated by different groups. The output from boxplot gives the researcher a lot of information about the distribution of the continuous variable and the possible influence of the categorical variable. A boxplot allows the researcher to inspect a pattern of scores within each group and allows visual inspection of the differences between groups
		+	(Pallant, 2016).
		+
		+	''Contributed by Joseph W. Sullivan''
		+
	==Creating a box and whisker plot using SPSS==		==Creating a box and whisker plot using SPSS==
	(Refer to emailed file for screen-shots and further assistance)		(Refer to emailed file for screen-shots and further assistance)

@@ Line 42: / Line 42: @@
-=='How-to Video==
+==How-to Video==
 How to create a box and whisker plot using SPSS  [http://www.youtube.com/watch?v=lRaMDHiIvc4&feature=youtu]
 ''contributed by Jen Eraca''

← Older revision		Revision as of 15:36, 17 December 2019
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−	=='''How-to Video~~-how~~ to create a box and whisker plot using SPSS~~'''==~~ [http://www.youtube.com/watch?v=lRaMDHiIvc4&feature=youtu]	+	=='How-to Video==
		+
		+	How to create a box and whisker plot using SPSS [http://www.youtube.com/watch?v=lRaMDHiIvc4&feature=youtu]

	''contributed by Jen Eraca''		''contributed by Jen Eraca''