Descriptive Statistics - correct answer ✔The process of organizing and
summarizing data
Inferential Statistics: - correct answer ✔Using probability to determine how
confident we can be that our conclusion is correct
Probability - correct answer ✔tool used to study randomness
Population - correct answer ✔collection of people or things
Sample - correct answer ✔a portion of the population that is to be studied to
gain information about the entire population
Statistic - correct answer ✔a number that represents a certain property of the
sample
Parameter - correct answer ✔a number characteristic of the population that
can be estimated by a statistic
Qualitative Data - correct answer ✔data relating to attributes of the
population that are characteristics (often called categorical data)
Quantitative Data: - correct answer ✔deals with numerical values of the
population (height, weight)
, Discrete data: - correct answer ✔the result of counting (whole numbers, ex:
the number of phone calls you get in a day)
Continuous data - correct answer ✔results of measurements (lengths, time)
Simple Random Sample - correct answer ✔any group of individuals has the
same chance of being chosen for the test group (usually chosen through a
computer)
Stratified Sample: - correct answer ✔Divide the population into groups called
strata based on characteristic and take the same amount of people from each
strata
Cluster Sample: - correct answer ✔divide the population into clusters and
sample everyone from a single cluster
Systematic Sample - correct answer ✔select a starting point and take every
Nth person to be part of the sample
Convenience Sampling - correct answer ✔using results based on
convenience like interviewing customers
Without Replacement: - correct answer ✔Someone may be chosen only
once for a sample or survey (you don't replace someone after they have been
chosen)
With Replacement: - correct answer ✔Someone can be chosen multiple
times because once they are done they go back into the population to
perhaps be picked again