You are dealt one card from a standard 52-card deck. Find the probability of being dealt a seven
There are 52 cards in a standard deck and 4 cards of each rank. Since there are four sevens (one in each suit - hearts, diamonds, clubs, and spades), the probability of being dealt a seven in a single draw from a full deck is 4 out of 52.
To calculate this probability, you would divide the number of favorable outcomes (drawing a seven) by the total number of possible outcomes (total cards in the deck). The probability (P) is therefore:
P(seven) = Number of sevens in the deck / Total number of cards in the deck
P(seven) = 4 / 52
P(seven) = 1 / 13
So the probability of being dealt a seven from a standard 52-card deck is 1 in 13, or approximately 0.0769, or 7.69%.