The 365 Data Science team is proud to invite you to our own community forum. A very well built system to support your queries, questions and give the chance to show your knowledge and help others in their path of becoming Data Science specialists.
Anybody can ask a question
Anybody can answer
The best answers are voted up and moderated by our team

The Intersection of Two Sets Question 3

The Intersection of Two Sets Question 3


I am struggling to understand the answer to ‘Which of the following showcases the two sets, whose intersection is the smaller set?’ 
the answer is ‘black cards and clubs’ but as I understand it for each:

  • subset of clubs intersects completely with set of black cards (26 black with 13 clubs)
  • subset of jacks intersects by a thirteenth with set of Aces ( 13 jacks, 1 Ace)
  • subset of queens intersects completely with set of spades (1 queen, 13 spades)
  • subset of hearts does not intersect with diamonds, they cannot happen simultaneously.

we are looking for the smallest overlap, therefore if the aforementioned theory was corrrect, answer 4 would be correct, no overlap or intersection? but instead it states answer 1 is correct?
Can someone elaborate or explain more for me please?

1 Answer

365 Team

Hey Daniel, 
Sorry for the confusion!
We’re looking for a pair of answers where the intersection of the two sets, is the smaller of these two sets. For example, we have sets A and B, where B is the smaller set and we’re looking for an answer pair where AnB = B.
Hope this clears things up!
365 Vik

Complete Data Science Training
Save 60%