that card drawn is the heart.

In a pack of 52 cards, there are 4 queen cards and 13 heart cards

Given : P(A) = 4/52   , P(B) =13/52

To find : Probability that card drawn is either a queen or heart = P(A or B)

The formula used : Probability =

P(A or B) = P(A) + P(B) – P(A and B)

P(A) =     (as favourable number of outcomes = 4 and total number of outcomes = 52)

P(B) =     (as favourable number of outcomes = 13 and total number of outcomes = 52)

Probability that card drawn is both queen and heart = P(A and B)= 1 (as there is one card which is both queen and heart i.e queen of hearts)

P(A or B) =  4/52  + 13/52  1

P(A or B) = 4/13

4/13P(A or B)= 4/13

Probability of a card drawn is either a queen or heart = P(A or B) = 4/13