Until the letter is selected, it is a variable. Immediately after it is selected, the outcome is no longer a variable but a constant.
It is 21/26.
The probability is 0.
It is 3/4.
P (selecting a king) = 4/52 = 1/13
Theoretical
Theoretical
Until the letter is selected, it is a variable. Immediately after it is selected, the outcome is no longer a variable but a constant.
It is 21/26.
The answer depends on what you are selecting from. If you are selecting months in which the equinoces occur, the probability is 0.5
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.
The probability is 21/26.
The probability is 6/52 = 3/26.