A card is drawn from a well shuffled deck of 52 cards
Probability of (drawing a card) = [tex]\frac{number \ of \ cards \ that \ occur}{total \ number \ of \ cards}[/tex]
Total number of cards = 52
Number of spade = 13
Number of heart = 13
Probability ( drawing a spade) = [tex]\frac{13}{52} = \frac{1}{4}[/tex]
Probability ( drawing a heart) = [tex]\frac{13}{52} = \frac{1}{4}[/tex]
probability of drawing a spade or a heart = [tex] \frac{1}{4} +\frac{1}{4}[/tex]
= [tex]\frac{2}{4}[/tex] = [tex]\frac{1}{2}[/tex]
a half ratio so 26:52 or 2:4 or 1:2 depending on if it asked you to simplify or not.
Because it asked both heart and spade, there are 13 per shape in a deck. so 13+13 = 26 and 26 is equal to one half of a deck.
