Tabitha has a deck of cards numbered 1β10. She picks one card, puts it back in the deck and then chooses a second card. What is the probability that she picks an even number and then a 3?
Accepted Solution
A:
First compute the whole number of the possibilities : 10*9=90. Compute the number of favorable possibilities: There is 5 even numbers. Once we pick an even number,Β we pick 5. So the number of the favorable possibilities is 5. Now we compute the probability like this: [tex] \frac{5}{90} [/tex]