Let s={1,6,11,16,21,26}, E={6,16,26}, and G={21,26} Find the event E F AND G. Upside down u in between each letter. If there are no elements in the set, enter NONE

The Upside down u" is the "and" symbol \cap, so you are looking for any elements that are contained in all three sets - are there any? And though you called the first set "s" I think you meant "F," correct?

Teh
Upside down u" is the "and" symbol \cap, so you are looking for any elements that are contained in all three sets - are there any? And though you called the first set "s" I think you meant "F," correct?

I left out the f={1,11,21}. So would the answer be 21,26 or does it mean included in all E,F,G which would be none,because there is none that are in each one?

if F={1,11,21} then it has no common elements with E={6,16,26}. So the intesection of E \cap F is the null set.