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Chapter 4 (Variability (Standard Deviation (Use (Comparison (Variances)),…
Chapter 4
Variability
Range
Largest - Smallest
Standard Deviation
Square root
#
Use
Comparison
Variances
Variance
Sheet?
Application??
Coefficient of Variation
Stndrd/mean
Use
Proportions
Location
Mode
Data
All
Nominal :star:
Frequentiest
Median
Data
Numerical
Categorical
Calculation
(n+1)/2
Mean
Arithmetic :star:
Data
Numerical
Notation
Population
No.
N
Arithmetic
U
Sample
No.
n
Arithmetic
X
Sum/#
Outliers :red_cross:
???
Geometric
Changing Rates
Sheet?
Graphs
Skewness
Mode>Media>Mean
Symmetrical
Mean = Median = Mode
Standing
Quartiles
X
25th
50th
75th
X
Percentiles
#
L(p) = (n+1)P/100
Outliers
Dot Plot
Box Plot