In a standard deck cards there are 13 spades , 13clubs, 13 hearts and 13 diamonds the spades and the clubs are black and the hearts and the diamonds are red. if two cards are chosen at random one at a time and replaced after each pick. what is the probability that black card is chosen first and heart is chosen second?

The required probability is 1/8.

Step-by-step explanation:

In a standard deck cards there are 13 spades , 13 clubs, 13 hearts and 13 diamonds.

Total cards =

The spades and the clubs are black and the hearts and the diamonds are red.  

Means 26 cards are red and 26 cards are black.

Now, 1 heart card can be drawn from a pack of 13 heart cards in 13C1 ways or 13C1=13

And 1 card can be drawn from a pack of 52 cards in 52C1 ways or 52C1=52

So, the probability of drawing a heart card from 52 cards is

Similarly, 1 black card can be drawn from a pack of 26 black cards in 26C1 ways or 26C1=26

And 1 card can be drawn from 52 cards in 52C1 ways or 52C1=52

Therefore, the probability of drawing a black card from a pack of 52 cards is  

Hence, the probability (combined) is =

we'll this would mean that the dunk tank and the bounce house are the same for 20 hours because the 2 represents that the two activities, and the 20 represents the amount of hours they both are. so with this said, it means that the answer is c. the costs for a dunk tank and bounce house are the same for 20 hours.

c.the costs for a dunk tank and bounce house are the same for 20 hours.

hope this .