Statistics Flashcards by Charmian Monroe

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Q

What is nominal data?

A

Categorical- named variables (like eye colour)

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Q

What is ordinal data?

A

Categories- but there’s an order (gold, silver, bronze or 1st, 2nd and 3rd)

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Q

What is interval data?

A

Data with a meaningful scale (temperature)

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Q

What is ratio?

A

Data with a meaningful scale with an absolute 0

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Q

How do we describe data?

A

Measures of central tendency

Mean, mode, median

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Q

What is mean?

A

Average set of values

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Q

What is mode?

A

Most common

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Q

What is median?

A

Middle number

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Q

What is range?

A

Difference between the highest and the lowest

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Q

What are the measures of dispersion?

A

Range
Interquartile range
Standard deviation

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Q

What is interquartile range?

A

Middle 50%

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Q

What is standard deviation?

A

Variation in a set of values

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