Portage Learning Math 110 Statistics Module 1
1. statistics science of data: collecting, classify-
ing, summarizing, organizing, analyz-
ing, and interpreting info
2. data things about which info can be col-
lected and analyzed
3. data set A collection of observations (mea-
surements) taken on a set of elements
4. element Definition: An element is the entity on
which variables are measured.
5. variable A specific characteristic or attribute
that is measured for each element
6. observation The data value collected for a specific
variable on a single element
7. descriptive statistics a set of methods used to summarize
and describe the main features of a
dataset, such as its central tendency,
variability, and distribution. (tabular,
graphical, or numerical forms)
8. inferential statistics the use of a sample to make decisions
about a population
9. population the entire number of items in a large
group
10. sample a smaller representative group from
the population
1/8
, Portage Learning Math 110 Statistics Module 1
11. qualitative data observations classified into a group of
categories, not on a numerical scale
(can be numerical or categorical). Ex-
amples are age, gender)
12. quantitative data measurements recorded on a natu-
rally occurring numerical scale (# of
children, grade pt average, bank ac-
count amount, temperature)
13. t/f: math operations only make sense on quan- true
titative data
14. what are the two types of data collection cross-sectional and time series
15. what type of data collection is where data is col- Cross-sectional data
lected at the same or approximately the same
point in time, such as a lap time in race or
average GPA of one semester of students?
16. what type of data is collected over several time time series data
periods, such as the average price/gallon of gas
over a decade?
17. t/f: the most commonly used numerical statis- true
tic is called the average/mean
18. statistical inference uses sample data to make estimates,
decisions, predictions or other gener-
alizations about a larger set of data or
population
19. where do you find data (2 options) existing info or direct collection
2/8
1. statistics science of data: collecting, classify-
ing, summarizing, organizing, analyz-
ing, and interpreting info
2. data things about which info can be col-
lected and analyzed
3. data set A collection of observations (mea-
surements) taken on a set of elements
4. element Definition: An element is the entity on
which variables are measured.
5. variable A specific characteristic or attribute
that is measured for each element
6. observation The data value collected for a specific
variable on a single element
7. descriptive statistics a set of methods used to summarize
and describe the main features of a
dataset, such as its central tendency,
variability, and distribution. (tabular,
graphical, or numerical forms)
8. inferential statistics the use of a sample to make decisions
about a population
9. population the entire number of items in a large
group
10. sample a smaller representative group from
the population
1/8
, Portage Learning Math 110 Statistics Module 1
11. qualitative data observations classified into a group of
categories, not on a numerical scale
(can be numerical or categorical). Ex-
amples are age, gender)
12. quantitative data measurements recorded on a natu-
rally occurring numerical scale (# of
children, grade pt average, bank ac-
count amount, temperature)
13. t/f: math operations only make sense on quan- true
titative data
14. what are the two types of data collection cross-sectional and time series
15. what type of data collection is where data is col- Cross-sectional data
lected at the same or approximately the same
point in time, such as a lap time in race or
average GPA of one semester of students?
16. what type of data is collected over several time time series data
periods, such as the average price/gallon of gas
over a decade?
17. t/f: the most commonly used numerical statis- true
tic is called the average/mean
18. statistical inference uses sample data to make estimates,
decisions, predictions or other gener-
alizations about a larger set of data or
population
19. where do you find data (2 options) existing info or direct collection
2/8
