A special deck of cards has 3 blue cards, and 7 orange cards. The blue cards are numbered 1, 2, and 3. The orange cards are numbered 1, 2, 3, 4, 5, 6 and 7. The cards are well shuffled and you randomly draw one card. B = card drawn is blue O = card drawn is odd-numbered a. How many elements are there in the sample space? b. P(B) =