Can anybody give a good solution to this one?
An eight-card deck consists of 4 pairs of each suit. 2 cards are taken at random without replacement. What is the probability to have two cards of the same suit?
The absolute quickest way to solve this is to say:
Whatever card I pick as the first card, there is only one card of the seven remaining to match its suit. Hence, the answer is 1/7
Former Senior Instructor, Manhattan GMAT and VeritasPrep
Vice President, Midtown NYC Investment Bank, Structured Finance IT
MFE, Haas School of Business, UC Berkeley, Class of 2005
MBA, Anderson School of Management, UCLA, Class of 1993