Lecture 1.1-1.3 Vocabulary

What is data?

any observations that is collected

What is statistics?

Collecting, analysing, summarizing, interpreting, and drawing conclusions

What is a population?

Complete set of all elements that needs to be studied

What is a sample?

A subset of the population

What is a parameter?

a characteristic of a population

What is a statistic?

a characteristic of a sample

What is the abbreviation of a statistic?

S-S

What is an abbreviation of a parameter?

P-P

What is qualitative?

categorical; non-numeric data, utilizing mathematics would be useless

What is quantitative?

Categorical; numerical data, utilizing mathematics would be meaningful

What is discrete data?

Countable, finite

What is continuous data?

Infinite number of possible values

What is an example of discrete data?

number of sides on a cube

What is an example of continuous data?

the distance between 1 and 1.1 (measurements)

What is nominal measurement?

Categories not ordered

What is ordinal measurement?

data that can be ordered, difference however are meaninigless

What is interval measurement?

ordered, differences are meaningful, without a natural zero

What is ratio data?

ordered, differences are meaningful, there is a natural zero

What is an example of nominal measurement?

Categories of religions, race, or gender (they can categorical but they cannot be seen as better or less)

What is an example of ordinal data?

Players in track orders, Color on the spectrum

What is an example of interval data?

When the temperature is zero degrees, it doesn’t mean that there is no temperature, it just means it is really cold

What is an example of ratio data?

Counting money when it is zero it means there is none