COMPLETE QUESTIONS AND VERIFIED
SOLUTIONS 100% CORRECT
⩥ Example of statistics. Answer: Number of students in a particular
curriculum speed of problem-solving, or average cost of dinner
⩥ Purpose of statistics. Answer: Making decisions with incomplete data
⩥ Data. Answer: A record of an observation or an event such as a test
score, grade in a class, or response time, one!
⩥ Data Set. Answer: A collection of observations or events such as test
scores, grades on a test, or response times
⩥ Descriptive statistics. Answer: Used to organize and describe the
characteristics of a collection of data; measures of central tendency (CT)
and measures of variability
⩥ Inferential statistics. Answer: Used to make generalizations from a
smaller group of subjects (a sample to a larger group of subjects (a
population); won't have access to the entire population
, ⩥ Population. Answer: A group of people that have at least one
characteristic in common (All Aggies)
⩥ Sample. Answer: A subset of a population (Certain subset of Aggies)
⩥ Statistic. Answer: A summarized value of a sample (Avg. Age of
Aggies)
⩥ Parameter. Answer: A summarized value of a population (avg. age of
the entire population of aggies)
⩥ Variables. Answer: A characteristic (of a person, place, or thing) that
takes on different values (Achievement, attitude, knowledge, etc)
⩥ Types of variables. Answer: Quantitative (Numerical) and Qualitative
(Categorical
⩥ Quantitative Variable. Answer: Represent differing amounts of the
characteristic (Age, intelligence, or run time, etc.)
⩥ Qualitative Variable. Answer: Represent differing kinds rather than
amounts (Gender, marital status, or breed of dog, etc.)