Chapter 4 - Data Flashcards

1
Q

Primary data

A
  • Collected by the person doing the investigation
    -first hand
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Secondary data

A
  • Using data that someone else has collected & stored
  • second hand
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Qualitative / categorical data

A

Non - numerical data
- e.g colours, names, places-yes, no

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Quantitative / numerical data & it’s two divisions

A
  • Numerical
  • discrete- certain value, counting
    -continuous- between 2 given values, measuring
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

How do you find an angle to make a pie chart

A
  • Find total
    -write a fraction with the data of angle as the numerator & total as denominator
  • multiply that fraction by 360
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is unsorted data called

A

Raw data

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

How do you get data from a pie chart (in specifics, e.g number of ppl, number of hours)

A
  • Measure the angle
  • make it a fraction with 360 as denominator
  • simplify the fraction
  • multiply that fraction by the total of the pie chart
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

How do you find percentage from a pie chart

A
  • Make a fraction with the total as denominator & the number of which the percentage you want to find
  • multiply that fraction by 100

Or
- do angle number over 360 multiplied by 100

How well did you know this?
1
Not at all
2
3
4
5
Perfectly