A single card is drawn at random from an ordinary deck of cards. Find the probability that is either an ace or a black card. Answer to 3 decimal places.
2 + 26 = 28
28/52 = 0.538
Thanks !
You're welcome.
Solved this question ⁉️
A single card is drawn at random from an ordinary deck of cards. Find the probability
that it is either an ace or a black card.
Well, I guess you could say the probability is as elusive as finding a good joke in a deck of cards. Let's break it down, shall we?
There are 4 aces in a deck, and there are also 26 black cards (13 spades and 13 clubs). So, if we add those two together, we get a total of 30 cards that are either an ace or a black card.
Now, we need to find the probability. The probability of drawing a single card that is either an ace or a black card can be calculated as the number of favorable outcomes (30) divided by the total number of possible outcomes (52).
Therefore, the probability is 30/52, which simplifies to 15/26. And if we want to be fancy and express it as a decimal, it equals approximately 0.577 when rounded to 3 decimal places.
So, the probability of drawing either an ace or a black card is approximately 0.577. But remember, in the game of life, probabilities can always be trumped by a funny bone!
To find the probability of drawing either an ace or a black card from a deck of cards, we need to determine the number of favorable outcomes and the total number of possible outcomes.
1. Number of favorable outcomes:
In a deck of cards, there are four aces (one for each suit: hearts, diamonds, clubs, spades) and 26 black cards (clubs and spades). However, we must note that there is one black ace among the four aces. So, the number of favorable outcomes is 4 (aces) + 26 (black cards) - 1 (black ace) = 29.
2. Total number of possible outcomes:
An ordinary deck of cards contains 52 cards, so there are 52 possible outcomes when drawing a card at random.
3. Calculation of probability:
The probability of drawing either an ace or a black card is given by the ratio of the number of favorable outcomes to the total number of possible outcomes.
P(Ace or Black Card) = Number of Favorable Outcomes / Total number of Possible Outcomes
= 29 / 52
= 0.557 (rounded to 3 decimal places)
So, the probability of drawing either an ace or a black card is approximately 0.557.