MATH 120 STATISTICS ACTUAL
EVALUATION GUIDE 2026
GUARANTEED CORRECT GRADED A+
◉ Population. Answer: The entire group to be studied is called
Ex: Taking a survey of the whole elementary school of their favorite
ice cream
◉ Sample. Answer: Is a subset of the population that is being
studied
Ex: Out of the whole elementary school 50 students were chosen to
participate in a survey
◉ Descriptive Statistics. Answer: Consist of organizing and
summarizing data. Describes data through numerical summaries,
tables, and graphs
◉ Parameter. Answer: Is a numerical summary of a population
Ex: Suppose 48.2% of all students on your campus own a car. This is
numerical summary of the population
, ◉ Inferential Statistic. Answer: Use methods that take a result from a
sample, extend it to the population, and measure the reliability of
the result
Ex: Rather than saying that 78% fo all students would return the
money. We might say that between 74% and 82% fo all students
would return the money
◉ Statistic. Answer: Is a numerical summary of a sample
Ex: Suppose a sample of 100 students is obtained , and from this
sample we find that 46% own a car
◉ Explanatory variable. Answer: is one that explains changes in that
variable.
◉ Response variable. Answer: is the focus of a question in a study or
experiment.
◉ Qualitative variable. Answer: allow for classification of individuals
based on some attribute or characteristics
◉ Quantitative variable. Answer: provide numerical measures of
individuals
EVALUATION GUIDE 2026
GUARANTEED CORRECT GRADED A+
◉ Population. Answer: The entire group to be studied is called
Ex: Taking a survey of the whole elementary school of their favorite
ice cream
◉ Sample. Answer: Is a subset of the population that is being
studied
Ex: Out of the whole elementary school 50 students were chosen to
participate in a survey
◉ Descriptive Statistics. Answer: Consist of organizing and
summarizing data. Describes data through numerical summaries,
tables, and graphs
◉ Parameter. Answer: Is a numerical summary of a population
Ex: Suppose 48.2% of all students on your campus own a car. This is
numerical summary of the population
, ◉ Inferential Statistic. Answer: Use methods that take a result from a
sample, extend it to the population, and measure the reliability of
the result
Ex: Rather than saying that 78% fo all students would return the
money. We might say that between 74% and 82% fo all students
would return the money
◉ Statistic. Answer: Is a numerical summary of a sample
Ex: Suppose a sample of 100 students is obtained , and from this
sample we find that 46% own a car
◉ Explanatory variable. Answer: is one that explains changes in that
variable.
◉ Response variable. Answer: is the focus of a question in a study or
experiment.
◉ Qualitative variable. Answer: allow for classification of individuals
based on some attribute or characteristics
◉ Quantitative variable. Answer: provide numerical measures of
individuals
