EBook Problems Contingency Indep - Revision history

Tdlee: Text replacement - "{{translate|pageName=http://wiki.stat.ucla.edu/socr/" to ""{{translate|pageName=http://wiki.socr.umich.edu/"

2020-03-03T19:33:49Z

Text replacement - "{{translate|pageName=http://wiki.stat.ucla.edu/socr/" to ""{{translate|pageName=http://wiki.socr.umich.edu/"

IvoDinov: /* Problem 1 */ light table formatting

2009-10-26T16:58:05Z

‎Problem 1: light table formatting

JayZzz at 00:14, 9 January 2009

2009-01-09T00:14:52Z

JayZzz at 23:16, 8 January 2009

2009-01-08T23:16:09Z

JayZzz at 21:27, 3 January 2009

2009-01-03T21:27:22Z

JayZzz at 20:22, 31 December 2008

2008-12-31T20:22:17Z

JayZzz: New page: == EBook Problems Set - Contingency Tables: Independence and Homogeneity Problems== ===Problem 1=== Here is a tab...

2008-12-31T20:20:15Z

New page: == EBook Problems Set - Contingency Tables: Independence and Homogeneity Problems== ===Problem 1=== Here is a tab...

New page

==[[EBook_Problems | EBook Problems Set]] - [[AP_Statistics_Curriculum_2007_Contingency Indep | Contingency Tables: Independence and Homogeneity]] Problems==

===Problem 1===
Here is a table of the eye color for 80 UCLA students enrolled in a recent statistics course and whether or not a student wears glasses or some other type of prescription/corrective lenses.

{|border="1"
|-
| _ || Wears glasses / Lenses || Does not wear glasses / Lenses || _
|-
| Dark-eyed || _ || _ || _
|-
| Black || 4 || 2 || 6
|-
| Brown || 19 || 35 || 54
|-
| Light-eyed || _ || _ || _
|-
| Blue || 8 || 4 || 12
|-
| Green || 2 || 3 || 5
|-
| Hazel || 1 || 2 || 3
|}

Use the data from the table to answer this and the next 3 questions.

What percent of these UCLA statistics students are dark-eyed?

*Choose one answer.

:''(a) 23/60 = 38.3%

:''(b) None of these values

:''(c) 23/80 = 28.8%

:''(d) 60/80 = 75%

:''(e) 37/60 = 61.7%
{{hidden|Answer|(d)}}

===Problem 2===
What percent of dark-eyed students wear corrective lens?

*Choose one answer.

:''(a) 60/80 = 75%

:''(b) 37/60 = 61.7%

:''(c) 23/80 = 28.8%

:''(d) None of these values

:''(e) 23/60 = 38.3%
{{hidden|Answer|(e)}}

===Problem 3===
What percent of students who wear lenses are dark-eyed?

*Choose one answer.

:''(a) 23/34 = 67.6%

:''(b) 23/80 = 28.8%

:''(c) 34/80 = 42.5%

:''(d) 34/60 = 56.7%

:''(e) 23/60 = 38.3%
{{hidden|Answer|(a)}}

===Problem 4===
The professor found a pair of prescription glasses on the ground after class, what are the chances that the glasses belong to a dark-eyed student?

*Choose one answer.

:''(a) 34/80 = 42.5%

:''(b) 23/34 = 67.6%

:''(c) 23/80 = 28.8%

:''(d) 34/60 = 56.7%

:''(e) 23/60 = 38.3%
{{hidden|Answer|(b)}}

<hr>
* [[EBook | Back to Ebook]]
* SOCR Home page: http://www.socr.ucla.edu

{{translate|pageName=http://wiki.stat.ucla.edu/socr/index.php/EBook_Problems_EDA_IntroDesign}}

← Older revision		Revision as of 19:33, 3 March 2020
Line 248:		Line 248:
	* SOCR Home page: http://www.socr.ucla.edu		* SOCR Home page: http://www.socr.ucla.edu

−	{{translate\|pageName=http://wiki.~~stat~~.~~ucla~~.edu~~/socr~~/index.php/EBook_Problems_Contingency_Indep}}	+	"{{translate\|pageName=http://wiki.socr.umich.edu/index.php/EBook_Problems_Contingency_Indep}}

← Older revision		Revision as of 20:22, 31 December 2008
Line 92:		Line 92:
	* SOCR Home page: http://www.socr.ucla.edu		* SOCR Home page: http://www.socr.ucla.edu

−	{{translate\|pageName=http://wiki.stat.ucla.edu/socr/index.php/~~EBook_Problems_EDA_IntroDesign~~}}	+	{{translate\|pageName=http://wiki.stat.ucla.edu/socr/index.php/EBook_Problems_Contingency_Indep}}

@@ Line 6: / Line 6: @@
 {|border="1"
 |-
-| _ || Wears glasses / Lenses || Does not wear glasses / Lenses || _
+| colspan=2 |Phenotype || Wears glasses / Lenses || Does not wear glasses / Lenses || Total
 |-
-| Dark-eyed || _ || _ || _
+| rowspan=2  |Dark-eyed || Black || 4 || 2 || 6
 |-
 | Brown || 19 || 35 || 54
 |-
-| Light-eyed || _ || _ || _
+| rowspan=3  |Light-eyed || Blue || 8 || 4 || 12
 |-
 | Green || 2 || 3 || 5
 |-
 | Hazel || 1 || 2 || 3
 |}

@@ Line 223: / Line 223: @@
 :''(e) 203/711 = 28.6%
 {{hidden|Answer|(e)}}
 <hr>
 * [[EBook | Back to Ebook]]

@@ Line 106: / Line 106: @@
 {{hidden|Answer|(a)}}
 <hr>
 * [[EBook | Back to Ebook]]

@@ Line 87: / Line 87: @@
 :''(e) 23/60 = 38.3%
 {{hidden|Answer|(b)}}
 <hr>