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Biostatistics Year map 10C :checkered_flag:, independent - Coggle Diagram

- - - - Means something that focuses on the qualities or characteristics not on numbers or quantities.
    - - Numbers that represent a quantity and can be used to create graphs and develop calculations.
  - - - categories with no natural order (e.g., species names, countries).
        
        Only the comparative process of = and != have any logical meaning.
    - - Numerical values with a order, but no meaningful meaning to the difference between values.
        
        Only the comparative prosses of =, !=, =<, =>,<, and > have any logical meaning.
    - - numeric with meaningful differences but no true zero (e.g., years).
        
        The logical prosses of equality (=, !=), comparison (=<, =>, <, >) and the arithmetical prosses of + and - have any logical meaning.
    - - numeric with a true zero and meaningful ratios (e.g., population size, percentages, weights).
        
        All comparative and arithmetic processes have logical meanings.
- - - - There is no control regarding the population
  - - - The researcher knows about the experiment, but the subject does not. This avoids the subject experiencing placebo effects from their preconceived notions of what the experiment is measuring.
    - - The researcher and the subject does not know about the independent variable, thus in addition to the subject not being able to alter the results, the researcher can not impose their personal bias onto the experiment.
    - - Both the researcher and the subject know about the experiment and the independent variable.
- - - - the sum of all values divided by the number of values
        
        =AVERAGE
    - - The number in the middle of the set
        
        =MEDIAN
    - - The most repeated value in a set
        
        =MODE
  - - - The substraction of the smallest value from the greatest
        
        First order de data
        
        =MIN (A1:Ax)
        
        Then do it again but opposite
        
        =MAX(B1:Bx)
        
        Substract
        
        =B1-A1
    - - It is the distance between the values and the mean measured in squared units
        
        Sum i=1 to i=n (xi - mean)^2
        
        n = the number of values
    - - is a measure that shows how much the values spread out from the average
        
        Square root of variance divided by the number of values
        
        Sqrt(Var/n)