A deck of 52 cards has 26 red cards (13 diamonds and 13 hearts). Each suit has 3 face cards (Jack, Queen, and King). Hence, the total number of red face cards is: \[ 3 (\text{face cards in hearts}) + 3 (\text{face cards in diamonds}) = 6 \] Thus, the probability of selecting a red face card is: \[ \text{Probability} = \dfrac{\text{Number of red face cards}}{\text{Total number of cards}} = \dfrac{6}{52} = \dfrac{3}{26} \]
The correct option is (A): \(\frac{3}{26}\)
If \(S=\{1,2,....,50\}\), two numbers \(\alpha\) and \(\beta\) are selected at random find the probability that product is divisible by 3 :
If the probability distribution is given by:
| X | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
|---|---|---|---|---|---|---|---|---|
| P(x) | 0 | k | 2k | 2k | 3k | k² | 2k² | 7k² + k |
Then find: \( P(3 < x \leq 6) \)