Summarizes the measures of location, measures of distribution, measures of variability and other aspects important to analyse numerical data in statistic (STK110)
SOLUTIONS MANUAL for Modern Business Statistics with Microsoft® Excel®, 7Edition by Anderson, Sweeney, Williams, Camm, Cochran, Fry, Ohlmann
STK 110 Chapter 7 Notes (sampling)
Terminology for Statistics (STK110 Chapter 1)
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STK 110 (STK110)
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Descriptive Statistics: Numerical Measures
Chapter 3
Sample variance:
Measures of Location
Mean: average value.
Sample:
Population:
Median: middle w/e arranged
ascending order.
Mode: occurs most.
Geometric Mean: measure of location
calc by finding nth root of product of
n value.
Analysing growth rate in financial
Standard Deviation: defined 2 b
data.
positive square root of variance.
“s” for sample
Percentiles: prov info abt data spread
over interval from smallest 2 largest.
Coefficient of Variation: measures
std deviation relative 2 mean.
Ect.
Measure of Distribution,
Shape, Relative Location
Measures of Variability and Outliers
Skewness:
Range:
Interquartile Range:
Variance: diff btw value of each
observation (xi) & mean.
Deviation about mean
For sample
For population
Variance = deviations around mean
squared.
Population variance:
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