Example 1.2 from Statistics, 1.1 Definitions of Statistics, Probability, and Key Terms

Definitions of Statistics, Probability, and Key Terms: example 1.2

Determine what the key terms refer to in the following study.

A study was conducted at a local high school to analyze the average cumulative GPAs of students who graduated last year. Fill in the letter of the phrase that best describes each of the items below.

1. Population ____ 2. Statistic ____ 3. Parameter ____ 4. Sample ____ 5. Variable ____ 6. Data ____

a) all students who attended the high school last year
b) the cumulative GPA of one student who graduated from the high school last year
c) 3.65, 2.80, 1.50, 3.90
d) a group of students who graduated from the high school last year, randomly selected
e) the average cumulative GPA of students who graduated from the high school last year
f) all students who graduated from the high school last year
g) the average cumulative GPA of students in the study who graduated from the high school last year

Work it out on paper first. Then open the solution one step at a time, and stop as soon as you can finish on your own.

Solution
1. f; 2. g; 3. e; 4. d; 5. b; 6. c

How did it go?

Solution

Solution