as is customary with this quantity of questions, I will only provide answers and not detailed solutions so the general thing you need to find the solutions mode=most repeated number mean=average probabilty=(desired outcomes)/(total possible outcomes) permutations (how many ways can you pick...) if you have the question 'how many ways can you order 3 blocks' you do 3 possible for first slot 2 possible for second since 1 was in firrst slot 1 possible for last so number is 3 times 2 times 1=6 ways
so if you did have one like 'if you can pick 3 blocks from a selection of 10 blocks, how many ways can you pickthem (order counts' so 10 in first slot 9 in second 8 in third so 10 times 9 times 8=720 ways
1. first or 11 2. third or 9/20 3. first or 2/15 4. second or 36 5. first or 1680 6. fourth 8.625 7. fourth or no mode 8. third or 2008
