Notation
n
sample size
The grade distribution of a class is below
A | 25 students
A- | 10 students
B+ | 5 students
The second column is called what?
frequency
student gpa
quantitative
x̄
sample average
The grade distribution of a class is below
A | 62.5% of students
A- | 25% of students
B+ | 12.5% of students
The second column is called what?
proportion
relative frequency
percentage
probability
most popular food item sold at FSU football game
categorical
p
population proportion
The average height of 10 random FSU students was 5.8 feet.
The average height of another 10 random FSU students was 5.9 feet.
What is this called?
Sampling variation
FSU's football record in 2025.
5-7
quantitative
s
sample standard deviation
10 random FSU students had an average GPA of 3.2.
10 random UCF students had an average GPA of 3.0.
Why is this not sampling variation?
Sampling from two different populations
Highschool year
quantitative or categorical
σ
population standard deviation
30 random nursing majors at FSU spent on average 5 hours each week in a library.
Another 50 random nursing majors at FSU spent on average 4.8 hours each week in a library.
Why is this not sampling variation?
Different sized samples
social security number
categorical