PROBABILITY - 3

A card is chosen at random from a deck of 52 cards. It is then replaced and a second card is chosen. What is the probability of choosing a jack and then a number ten card?

solution

These are called independent events.

Probabilities:           

P(jack)  =       4

                     52

P(no. 10)      =          4                    

                               52                     

P(jack and no.10)  =         P(jack)           •         P(no.10)

                        =          4          •          4

                                    52                   52

             

             =           16                            

                       2704                         

             

             =           1                               

                       169

TRY THIS……………………………………

A card is chosen at random from a deck of 52 cards. It is then replaced and a second card is chosen. What is the probability of choosing a king and then a number six card?