Find The Probability of drawing a red face card on the first draw, replacing it and drawing a black card on the second draw.

Question

Please Explain

Answer 1

Marite:

 

Maybe this will help you.  You have a 6 out of 52 cards that will satisfy the first draw of a red face card (J, Q, K of hearts and diamonds).  In the second draw, you have 26 out of 52 cards (or, 1/2) that will be black.  So multiply the two answers together, and you have 6/52 times 1/2 = probability of 3 out of 52, or 3/52.  Better??

 

Larry

Answer 2

6 choices for a red face card

 

26 choices for a black card

 

replace and reshuffle means that we have 2 independent events

 

p = (6/52)*(26/52)

 

 

(You have posted several of these---is the basic procedure becoming clear?)