Use the special addition rule to determine the probability of drawing either a spade OR a heart from a standard deck of cards, on one draw from the deck.
1 Answer
Jan 29, 2015
The possibilies are exclusive (it's EITHER a spade OR a heart) and then you may add the probabilities.
13 spades + 13 hearts =26 "successes"
On a total of 52 this makes the probability:
Remember :
either...or
and...and
