A deck of cards has 52 cards in total.
25 cards are red & 26 cards are black .
P(red) = 26/52 = 1/2 = 0.5
Chat with our AI personalities
First of all, you have bad grammar.Second of all, you
can't be sure unless you only have one card in your deck.
26
The probability of getting a red card out of a standard 52 card deck is 26 in 52, or 0.5. The probability of getting a second red card is 25 in 51, or 0.490, because one red card is missing, and the deck is short by one card. The probability of getting a black card next is 26 in 50, or 0.52, because the deck is short by two cards, but all the black cards are there. Multiply these probabilities together, and you get about 0.127, or about 1 in 8, so the probability of getting 2 red cards and then a black card in a random 52 card deck is about 1 in 8.
0.2884615
The probability is 1. It must be "a red or black card".
Red card- 1/2 CLUB-1/4