Question

Костя наугад вытаскивает карту из колоды с 36 картами. Какова вероятность, что масть вытащенной карты будет пики, или буби, или черви?

Answer 1

P = m/n,

n = 36,

Одна масть состоит из (36/4) = 9 карт,

пики или буби, или черви - это три масти, которые составляют 9*3 = 27 карт.

m = 27.

P = 27/36 = 3/4 = 0,75

Answer 2

Calculating the Probability of Drawing a Spade, Club, or Diamond Card

To calculate the probability of drawing a spade, club, or diamond card from a standard deck of 36 cards, we can use the following formula:

Probability = (Number of favorable outcomes) / (Total number of possible outcomes)

In this case, the total number of possible outcomes is the total number of cards in the deck, which is 36.

Number of Favorable Outcomes for Drawing a Spade, Club, or Diamond Card

1. Spades: In a standard deck of 36 cards, there are 9 spade cards. 2. Clubs: Similarly, there are 9 club cards in a standard deck of 36 cards. 3. Diamonds: There are also 9 diamond cards in a standard deck of 36 cards.

Calculating the Probability

Using the formula mentioned earlier, the probability of drawing a spade, club, or diamond card can be calculated as follows:

Probability = (Number of favorable outcomes) / (Total number of possible outcomes)

Probability = (9 + 9 + 9) / 36

Probability = 27 / 36

Probability = 0.75

Therefore, the probability of drawing a spade, club, or diamond card from a standard deck of 36 cards is 0.75 or 75%.