Table:
0
A
B
C
D
E
1
Channel
Video
Aspect
PSIP Short Name
Network
2
31.1
720p
16:9
ION
Ion Television
3
31.2
480i
4:3
qubo
qubo
4
31.3
480i
4:3
IONLife
Ion Life
5
31.4
480i
4:3
Shop
Ion Shop
6
31.5
480i
4:3
QVC
QVC

Questions and formulas:
Question: Which network has more than 31.4 channels with a 4:3 aspect?
Formula: LET(query1,LET(query1,FILTER(A1:E1,C1="4:3"),SUMMARIZE(CHOOSECOLS(query1,5),SUMX(CHOOSECOLS(query1,1)))),FILTER(query1,CHOOSECOLS(query1,2)>31.4))
Formula2: LET(query1,LET(query1,FILTER(A2:E6,C2:C6="4:3"),SUMMARIZE(CHOOSECOLS(query1,5),SUMX(CHOOSECOLS(query1,1)))),FILTER(query1,CHOOSECOLS(query1,2)>31.4))
Level: hard
Question: Which video is on channel 31.2 with a 4:3 aspect?
Formula: LET(query1,LET(query1,FILTER(A1:E1,C1="4:3"),SUMMARIZE(CHOOSECOLS(query1,2),SUMX(CHOOSECOLS(query1,1)))),FILTER(query1,CHOOSECOLS(query1,2)=31.2))
Formula2: LET(query1,LET(query1,FILTER(A2:E6,C2:C6="4:3"),SUMMARIZE(CHOOSECOLS(query1,2),SUMX(CHOOSECOLS(query1,1)))),FILTER(query1,CHOOSECOLS(query1,2)=31.2))
Level: hard
Question: Which video has a 16:9 aspect?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="16:9"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E6,C2:C6="16:9"),2))
Level: medium