Answer:
The probability of choosing a spade or a 8card = 4/13
Step-by-step explanation:
There are 13 spade cards in the deck of 52 cards.
∴ Probability for the card to be a spade = P₁ = 13/52 = 1/4
There are 4 8card in 52 cards.
∴ Probability for the card to be 8card = P₂ = 4/52 = 1/13
There is only one 8card Spade
∴ Probability for the card to be an 8card and spade = P₁₂ = 1/52
Probability for the card to be a spade or an ace = P₃ = P₁ + P₂ - P₁₂
∴ P₃ = 1/4 + 1/13 − 1/52 = 4/13
