Statistics Key Terms

A study was conducted at a local college to analyze the average cumulative GPA’s of students who graduated last year. What does 'Statistic' refer to in the study?

• all students who attended the college last year

• the cumulative GPA of one student who graduated from the college last year

• a group of students who graduated from the college last year, randomly selected

• the average cumulative GPA of students in the study who graduated from the college last year

A _________, usually notated by capital letters such as X and Y, is a characteristic or measurement that can be determined for each member of a population.

A _______________ is a collection of persons, things, or

objects under study

A _______ is collected to study a population.

_________ is done to the larger population to study that portion (the sample) to gain information about the population.

The sample must contain the characteristics of the population in order to be a _________ sample.

___________ variables place the person or thing into a category.

________ are the actual values of the variable. They may be numbers or they may be words.

_______is a single value of a variable.

If you were to take three exams in your math classes

, you would calculate your _________ score by adding the three exam scores and dividing by three.