Primary Data & Graphs
What is Primary Data?
Primary Data is observed or collected from 1st hand experience.
What is Secondary Data?
Data that is collected in the past or from other parties.
What is Discrete Data?
Data that can only take certain values. (Like whole numbers)
Give an example of primary data.
Answers could vary. Survey done by students.
What is a sample?
When we collect data for just select members of a group.
What is a bar graph?
A diagram in which the numerical values of variables are represented by the height or length of lines or rectangles of equal width.
What is the scale on a bar graph?
The numbers on the x-axis of a bar graph or the y-axis of a column graph are called the scale.
What is Continuous Data?
Data that can take any value.
Give an example of Secondary Data.
Survey done in the past by the YRDSB. (Answers may vary)
What is a Census?
We collect data for every member of the group. The whole group, or the whole population.
Why do we use line graphs.
Line graphs can also be used to compare changes over the same period of time for more than one group.
Why do we use Pie Charts / or Pie Graphs?
Pie charts are best to use when you are trying to compare parts of a whole.
What is Qualitative Data?
Data the describes something. (descriptive data)
Give an example of Qualitative Data of my dog Tia.
She is brown and black.
She has hair.
She has a lot of energy.
How old are Mrs. Simpson's dogs, Tessa & Tia.
Tessa is 4 years old. Tia is 3 years old.
Why do we use bar graphs?
Bar graphs are used to compare things between different groups or to track changes over time.
What are the 5 necessary parts of a graph?
Axis Labels
Units
Intervals
Data
Title
What is Quantitative Data?
Data that has numerical information.
Give an example of Quantitative data of my dog Tia.
She has 4 legs.
She has 2 ears.
She has 4 sisters and 2 brothers
What Grade did Mr. Radder teach before he came to Park Avenue P.S?
Grade 3/4
What are 2 methods of collecting Primary Data?
Interviews
Experimental Research
Performing Surveys
Observation
Questionnaire
What are 3 methods of collecting data?
interviews, Questions/Surveys, Observations, Focus Groups, Case Studies, Documents/Records
What is published data?
Data that is in research form for everyone to see and use.
What is an example of MetaData?
Metadata is data that describes other data. ... Metadata summarizes basic information about data, which can make finding and working with particular instances of data easier. For example, author, date created and date modified and file size are examples of very basic document metadata.
How are graphs used in the real world?
Both are used to present real data. You will see tables in use when shopping for cell phone plans and you will see graphs in use when you research population growth. These are just a few examples of how they are used in the real world. In algebra, both are used as visual representations of functions and data.