Question

A card is drawn from a well shuffled deck of 52 cards find the probability of drawing a spade or a heart

Answer 1

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.

Answer 2

A card is drawn from a well shuffled deck of 52 cards

Probability of (drawing a card) =
`(number \ of \ cards \ that \ occur)/(total \ number \ of \ cards)`

Total number of cards = 52

Number of spade = 13

Number of heart = 13

Probability ( drawing a spade) =
`(13)/(52) = (1)/(4)`

Probability ( drawing a heart) =
`(13)/(52) = (1)/(4)`

probability of drawing a spade or a heart =
`(1)/(4) +(1)/(4)`

=
`(2)/(4)` =
`(1)/(2)`