One card is drawn randomly from 52 deck of cards.What is the probability that the card drawn is either Red or Jacks card.
Lets take total event = 52
n(S) = 52
Now, Total number of Red card including Red color 'Jacks' is 26.
and Two Black color 'Jacks'
Total card will be 26 + 2 = 28
n(E) = 28
Now we will put the value in the given formula
P(E) = n(E)/n(S)
P(E) = 28/52
Watch Youtube video of Probability for better understanding.