Table:
0
A
B
C
D
E
1
Source
Date
Clinton
Obama
Undecided
2
SurveyUSA
May 16–May 18, 2008
42%
55%
1%
3
Suffolk
May 15–May 17, 2008
41%
45%
8%
4
American Research Group
May 14–May 15, 2008
45%
50%
5%
5
Public Policy Polling (D)
May 10–May 11, 2008
39%
53%
7%
6
SurveyUSA
May 9–May 11, 2008
43%
54%
2%
7
Davis, Hibbitts & Midghall
May 8–May 10, 2008
35%
55%
10%
8
Rasmussen Reports
May 1, 2008
39%
51%
10%
9
SurveyUSA
April 28–April 30, 2008
44%
50%
4%
10
SurveyUSA
April 4–April 6, 2008
42%
52%
3%
11
Riley Research Poll
January 21–January 29, 2008
36%
28%
13%

Questions and formulas:
Question: What kind of Obama that has a Source of rasmussen reports?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="rasmussen reports"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,A2:A11="rasmussen reports"),4))
Level: medium
Question: Which Source has a Undecided of 2%?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,E1="2%"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,E2:E11="2%"),1))
Level: medium
Question: What kind of Obama has a Undecided of 1%?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,E1="1%"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,E2:E11="1%"),4))
Level: medium
Question: When has a Source of surveyusa and a Obama of 54%?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(A1="surveyusa")*(D1="54%")),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,(A2:A11="surveyusa")*(D2:D11="54%")),2))
Level: medium
Question: When has a Source of rasmussen reports?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="rasmussen reports"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,A2:A11="rasmussen reports"),2))
Level: medium
Question: Which Source has a Clinton of 39% and a Undecided of 7%?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(C1="39%")*(E1="7%")),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,(C2:C11="39%")*(E2:E11="7%")),1))
Level: medium