Data analysis and interpretation (HL)
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Question
What does data analysis do?
Answer
Turns raw data into meaningful, interpretable evidence.
Question
What does a bar chart show?
Answer
A comparison between groups or categories.
Question
What does a box-and-whisker plot show?
Answer
The spread and median of a data set.
Question
What does a scatter plot show?
Answer
The relationship (correlation) between two variables.
Question
Central tendency vs spread?
Answer
Central tendency = mean/median/mode; spread = range/standard deviation.
Question
What does the standard deviation show?
Answer
How spread out the data are around the mean.
Question
Does 'significant' mean 'large'?
Answer
No — it means unlikely to be due to chance; the effect can still be small.
Question
What is thematic analysis?
Answer
Identifying recurring themes in qualitative data to capture meaning.
Question
Why report spread as well as the mean?
Answer
Two groups can share a mean yet differ hugely in variation.
Question
Which concept does data analysis link to?
Answer
Measurement — analysis turns raw data into meaning.
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Topic 4.4 hub
Data analysis and interpretation
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