two cards are selected from a standard deck of cards. The first card is not replacedbefore the secondcards is selected.Find the probability of selecting a 2 and then selectinga a king

Respuesta :

A standard deck of cards has 52 total cards, 4 cards that are "2" and 4 card that are "king".

In the first selection, we have 4 "2" to pick from 52 prossibilities, so the probability of the first selection is:

[tex]\frac{4}{52}=\frac{1}{13}[/tex]

In the second pick, we have 4 "kings" to pick from 51 possibilities, since the first selection wasn't replaced. so, the probability of the second selection if:

[tex]\frac{4}{51}[/tex]

The probability of both happening in succession is the multiplication of the two probabilities:

[tex]\frac{1}{13}\cdot\frac{4}{51}=\frac{4}{663}[/tex]

So, the probability of selection a "2" and then selection a "king" is 4/663, which is appproximately 0.00603 or 0.603%.