# Statistics

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What is primary data?
It is data collected by yourself
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What is secondary data?
It is data collected by someone else
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2 advantages of primary data?
You know how and where it was collected / It is more reliable and accurate
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2 disadvantages of primary data?
Time consuming / Expensive
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2 advantages of secondary data?
Easy to get hold of / Cheaper / Less time consuming
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2 disadvantages of secondary data?
Could be out of date / You don't know how it was collected / May have some mistakes and biased
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What is the main difference between primary and secondary data?
You collect primary data yourself whereas, secondary data is when someone else collect
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What is qualitative data?
Quanlitative data is worded data
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What is quantitative data?
Quantitative data is numerical data
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What is discrete data?
Discrete data is something that can be measured exactly and countable e.g. number of pets, shoe size
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What is continuous data?
Continuous data can take any value within a range (interval) e.g. height, area, temperature, weight
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What is bivariate data?
Bivariate data measures two variables
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What is the name of the data that involves two characteristics of each member of the sample?
Bivariate data
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## Other cards in this set

### Card 2

#### Front

What is secondary data?

#### Back

It is data collected by someone else

### Card 3

#### Front

2 advantages of primary data?

### Card 4

#### Front

2 disadvantages of primary data?

### Card 5

#### Front

2 advantages of secondary data?

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