The probability is 0.4231, approx.
The probability of selecting a red card is 26 in 52 or 1 in 2. The probability of selecting an even card is 20 in 52 or 5 in 13. The probability, therefore, of selecting a red even card is 1 in 2 times 5 in 13 or 5 in 26.
Theoretical
The probability is 6/52 = 3/26.
From a 52 card deck, probability is 1/52.
Total number of months we use to have = 12. The month for required event is march. Quantity is one. Therefore, required probability = 1/12.
The probability is 0.4231, approx.
The probability of selecting a red card is 26 in 52 or 1 in 2. The probability of selecting an even card is 20 in 52 or 5 in 13. The probability, therefore, of selecting a red even card is 1 in 2 times 5 in 13 or 5 in 26.
The probability is 0.
It is 3/4.
The probability is 2:7.
Theoretical
The probability is 6/52 = 3/26.
From a 52 card deck, probability is 1/52.
Theoretical
P (selecting a king) = 4/52 = 1/13
The probability is 7:12... There are five months with less than 31 days, so the probability of selecting a month with exactly 31 days is 7 out of 12.