GG254 Lecture Notes - Lecture 3: Scientific Notation, Standard Deviation, Numeracy
Document Summary
*study basic operations for numeracy test next thursday. Letters near the middle of the alphabet take integers variables i is restriced to the number on the dice (discreet value) Bedmas (brackets, exponent, division, multiplication, addition ,subtraction) 5 (-3), negative and negative is positive therefore, 5 plus 3. Lower case sigma stands for population standard deviation. Upper case greek sigma summation symbol, Concise presentation of very large (or very small) numbers. Variable= a characteristic of an individual or object that ban be measured, counted, or classified. Data value= a measurement associated with an observation and variable. Sample= a subset of observations of a population. Example= variable= percent forest cover (1995), oberservation= countries, population= all countries, sample= chile, new zealand, and usa. We can algebraically manipulate these generalized symbols, following mathematical rules, to. The example breaks down the variable and indices help us analyse specific data sets.
