Shane correctly determines the probability of drawing a red queen from a well-shuffled pack of 52 cards as
Let E is an event of drawing a red queen from a well-suffled pack of 52 cards.
As there are total 52 cards in the pack, total number of possible outcomes= number of cards in the deck= 52.
There are total 4 queens in pack, out of which 2 are red. Therefore, for drawing a red queen, number of favorable outcomes= number of red queens= 2.
Now,
P (E)=Number of favorable outcomesTotal number of possible outcomes
⇒P (E)=Number of red queensTotal number of cards
⇒P(E)=252=22×26=126
∴ The probability of drawing a red queen from a well-suffled pack of 52 cards is 126.