Tabitha has a deck of cards numbered 1, 2, 3, 4, 5, 6, 7, 8, 9, 10. There are 5 odd numbers 1, 3, 5, 7, 9 and 5 even numbers 2, 4, 6, 8, 10.
1. She picks one card from given 10 cards. The probability that she picks an even number is

2. She puts first card back in the deck and then chooses a second card. The probability that she picks card with number 3 is

3. Use the product rule to determine the probability that she picks an even number and then a 3:

Answer: 0.05.