This content provides a foundational overview of statistical concepts, differentiating between descriptive and inferential statistics, and categorizing variables into quantitative (discrete and continuous) and qualitative types.
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okay so we are going to discuss
our statistics continuation of our last
of our last lecture so we have
the scripting synaptic descriptive
statistics collection organized
organization summary and then
presentation of data while for the inferential
inferential
we have generalizing conclusion and
using the sample mean of submission of x
over n
the bats are for the mean and then for
the variable a characteristic under
sandy that assumes different values for
different elements
so a variable is often denoted by
x y or z the value of a variable for an
element is called
for the data set is a collection of observation
observation
on one or more variables
quantitative variable variables
a variable that can be measured numerically
numerically
quantitative variables may be classified
as either
descriptive variables or continuous variables
variables
for the quantitative variables may be
classified as either
descriptive discrete variables and variables
variables
values are countable so for example
number of the students of
present-day class number of the green
marbles in hr
number of tails even clipping three coins
coins
and students grade
a point average so yeah
for the continuous variables a variable
whose value is obtained by measurement
so we have the height of the students
in the class and then weight of the students
students
in the class or the time it takes to get school
school
or the distance travel between classes
so these are the example of the continuous
continuous
variables well for the
qualitative variables of equality a
variable that cannot assume
a numerical value but can be classified
into two or more
non-numeric categories
we have gender martial status
for the polynomial we have brother pc
or hair color for the quantitative we
have the discrete
and continuous for the discrete children
in family or strokes on a golf
hall for continuous we have the amount
of income
tax paid and then weight of a
and qualitative at quantitative scription
quantitative or quality
[Music] ciao
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