# Math Midterm

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1. Hamilton Apportionment
• Step 1: Calculate each state's standard quota
• Step 2: Give each state it's lower quota
• Step 3: Give the surplus seats to largest residues
2. Jefferson Apportionment
• Step 1: Find a "suitable" lower divisor
• Step 2: Compute each state's modified quota
• Step 3: Each state is apportioned its modified lower quota
• Step 1: Find a "suitable" larger divisor
• Step 2: Compute each state's modified quota
• Step 3: Each state is apportioned its modified upper quota
4. Webster Apportionment
• Step 1: Find a "suitable" divisor
• Step 2: Compute each state's modified quota
• Step 3: Each state is apportioned it's modified quota using conventional rounding
5. Huntington Hill Apportionment
• Need both Upper and Lower quota, Geometric mean of U and L.
• If q < G, round down to L, otherwise round up.
• Ex: 3 x 4 = 12 --> sqrt of 12 = 3.5 --> roung up to 4
6. Convenience Sampling
Commonly used, the selection of which individuals are in a sample is dictated by what is easiest or cheapest for the data collector.
7. Simple Random Sampling
The most basic form of random sampling. Based on the same principle of a lottery: any set of #s has an equal chance of being chosen.
8. Stratified Sampling
Breaks sampling frame into categories called "strata" and then randomly choose a sample from these strata. The chosen strata are then further divided into categories called substrata.
9. Quota Sampling
A systematic effort to force the sample to be representative of a given population through the use of quotas.
10. Parameter
The numerical info we would like to have
11. Statistic
Any kind of numerical info drawn from a sample of a parameter.
12. 1 Standard deviation
68%
13. 2 Standard deviation
95%
14. 3 Standard deviation
99.7%
15. Permutations
nPr =
16. Combinations
nCr =
17. Probabilities
18. Normal Distribution

19. Q
20. n
The number of objects
21. r
The number of things you want to deal with
 Author: mhirshfield ID: 140080 Card Set: Math Midterm Updated: 2012-03-06 22:25:13 Tags: Math Midterm Folders: Description: Math Midterm Show Answers: