Additional 3 - Review Flashcards
nominal is a
named variables
ordinal is
named plus ordered variables
interval (scale of measurement is)
Named Plus ordered plus interval between variables
ratio
Named Plus ordered plus interval plus ratio, can Accommodate absolute zero
Nominal scale is used for
labeling variables into distinct classifications and doesn’t involve a quantity, value or order
Which scale of measurement is this:
which brand of smartphone do you prefer
nominal
Which scale of measurement is this:
what is your gender
nominal
Which scale of measurement is this:
what is your political preference
nominal
which scale of measurement is this:
where do you live (city, town, suburbs)
nominal
Ordinal scale is used for
to depict the order of variables and not the difference between each of the variables
(Frequency, satisfaction, happiness, degree of pain etc)
Which scale of measurement is this:
product quality
ordinal
Which scale of measurement is this:
tournament team rankings
ordinal
Which scale of measurement is this: product quality (unsatisfied,satisfied, neutral, satisfied very satisfied)
ordinal
Which scale of measurement is this:
Grades
ordinal
Interval scale is used for
the order of the variable is known as well as the difference between these variables
(distance between two entities)
Mean, median, or mode
but no pre-decided starting point or a true zero value
Which scale of measurement is this:
Celsius/fahrenheight temperature scale
interval
Which scale of measurement is this:
time
interval
Which scale of measurement is this:
calendar years
interval
Which scale of measurement is this:
What is your family income
Interval
Which scale of measurement is this:
what is the temperature in your city
interval
Which scale of measurement is this:
weight and height
ratio scale
Which scale of measurement is this:
weight and height
ratio scale
Which scale of measurement is this:
market shares
ratio scale
Which scale of measurement is this:
annual sales
ratio scale
Which scale of measurement is this:
price on an upcoming product
ratio scale
Which scale of measurement is this:
number of consumers
ratio scale (has a zero starting point) and no negative values
Which type of calcualions can be made using ratio scale
mean, median, mode
Which scale of measurement is this:
what is your daughter’s current height
ratio
Which scale of measurement is this:
what is your weight in kilos
ratio
Normal scale of measurement you can youse which calculation
mode
ordinal scale of measurement what can you use for calculations
sequence, mode, median
Interval scale of measurement what can you use for calculations
sequence, mode, median, mean, difference between variables, addiction and subtraction
ratio scale of measurement what can you use for calculations
sequence, mode, median, mean, difference between variables, addition and subtraction
plus multiplication and divisions of variables and absolute zero
Fi we collect data on the number of wins each team in the NFL had during the 2011-12 season, we have what type of data
cross-sectional??
If we collect data on the number of wins the Dallas cowboys earned each of the past 10 years, we have what type of data
time series
What type of scale of measurement is male or female
nominal
What type of scale of measurement is a list of restaurants food quality (good, very good, excellent, poor)
ordinal
what type of scale of measurement is temperature
interval
what type of scale of measurement does income use
ratio
arithmetic operations are NOT appropriate for
nominal scale
measurements collected for the elements are called
observations
categorical data are
labels used to identify attributes of an element
Quantitative data
indicate how much or how many
is temperature quantitative or categorical
quantitative
is income quantiative or categorical
quantitative
data collected at the same time or around the same time are
cross sectional
data collected over several time periods is
time series
statistical inference is
is the process of drawing conclusions (inferences)about the POP based on the info taken from a sample
In an experiment, the variable of interest is
controlled
in observational study, the variable of interest is
not controlled
If you have a sample of some many people and you say 60% approve the way Doug ford is doing his job. The statement about 60% is an example of
descriptive statistics
If you have a sample of some many people and you say 60% approve the way Doug ford is doing his job. If a reporter states “60% of all Ontario residents approve of how Doug is doing his job. This is an example of
statistical inference
years of experience is an example of
ratio data
rank is an example of
Ordinal
average number of something is descritpive or inferential
descriptive
making a statement or educated guess about something is descriptive or inferential
inferential
in a data set the number of elements equals
the number of observations
a frequency distribution sows
the number of items in several classes
the sum of frequencies for all of the classes equals
the number of the elements
we have several frequency distributions using the same data. how many classes will the widest class have
the fewest classes
in a frequency distribution when the class numbers decreased the class width
increases
