PROBABILITY C5

Aakash takes 2 cards from a standard deck of 52 cards.

What will be the probability of getting a pair of red cards?

solution

(this is a problem with replacement)

n(E) = 26, n(S) = 52

P(E) = n(E)

           n(S)

1st pick = 26/52

2nd pick = 26/52 as well.

P(red card) =  26      x    26

                      52           52

P(red card) =    676    =      1 

                         2704         4  

Therefore Probability of drawing 2 red cards is 1/4    

TRY THIS................................

Viney takes 2 cards from a standard deck of 52 cards.

What will be the probability of getting a black and a red card?