Collecting & Representing Data

Question 0

A good survey should be?

Answer 0

Random - a lot of different ppl & ideas
&
Representative - represents a lot of ppl

Question 1

What is a survey?

Answer 1

Sampling of

• facts
• figures
• opinions

Used to approximate something about a population

Question 2

Examples of surveys?

Answer 2

Poll a bunch of ppl to see who is voting a particular way

Poll people at a mall to see who works or will work in Education

Question 3

A biased survey ?

Answer 3

Is not random and/or representative

Question 4

One source of bias is that the sample is too limited, meaning?

Answer 4

They did not ask enough ppl

Question 5

Another source of bias could be that it is ________ .

Answer 5

Skewed

Asks enough ppl but at the wrong time

Ppl at the mall during 9am-3pm on weekdays
If
They work in education

Question 6

What is an example of survey being limited & skewed?

Answer 6

Surveyed 2 ppl

9am-3pm on weekdays

If

They work in education

Question 7

What do pie charts do?

Answer 7

Useful when examining how parts make up a whole

Question 8

What are bar graphs useful for?

Answer 8

Useful when comparing different quantities or

when tracking change over time

Question 9

Line graphs are useful when?

Answer 9

Tracking change over time

Question 10

What are tables useful for?

Answer 10

Examining
Contextualizing
Comparing

Specific Data

(Often numeric data)