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Qualitative and Quantitative Data
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Qualitative and Quantitative Data

lesson introduction

Qualitative and Quantitative Data

Qualitative data is words-based. Quantitative data is numbers-based.

1

Imagine you fill out this questionnaire. Will your answers be words or numbers?

A) Words B) Numbers

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2

Now, does this table give you data in words or in numbers?

A) Words B) Numbers

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3

You can separate data into 2 types

Qualitative data is words-based. Quantitative data is numbers-based.

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So quantitative data is numbers-based. Which 2 of these options will always give you quantitative data?

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You can select multiple answers

Qualitative data is words-based. Which 2 of these options will mostly give you qualitative data?

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You can select multiple answers

True or false? Qualitative data is numbers-based.

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Data that is numbers-based is called ________________ data.

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Data that is words-based is called ________________ data.

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1

Now, quantitative data can actually be divided into two types again

These two tables show examples of each of the two types.

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2

Look at table A. Would it make sense to talk about for example 2.32.3 siblings in a family? Answer yes or no.

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3

Look at table B. Would it make sense to talk about for example 15.7 cm15.7 \space cm of hair? Answer yes or no.

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4

So table A can only give data in whole numbers, whereas table B can give data also in decimal numbers

You have to have either 22 siblings or 33 siblings for example, you can't have 2.32.3 siblings.

You can have hair in all lengths, it doesn't have to be either 15 cm15 \space cm or 16 cm16 \space cm, for example.

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5

One of these types is called continuous quantitative data, because it allows all numbers. Which one is that? Answer A or B.

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6

So one type is called continuous quantitative data. What is the other type called?

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7

So quantitative data can be divided into two types

Discrete and continuous quantitative data.

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What kind of data will asking this question give you? Why do you think dogs are adorable?

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What kind of data will it give you to measure the height of all men on your street?

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What kind of data will it give you to count the number of deliveries made to your local supermarket every day?

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1

Summary! Data can be divided into qualitative and quantitative data

Qualitative data is words-based. Quantitative data is numbers-based.

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2

Quantitative data can again be divided into two types

Continuous quantitative data can be given with all kinds of numbers. Discrete quantitative data makes sense with only some numbers, for example whole numbers.

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