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The year 11's will be more accurate than the year 7s. (could see this by the year 7's having a high standard deviation)
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If a person overestimates on a line then they will overestimate on an angle (could show this by there being a positive correlation on the scatter graph with a srcc 0-1)
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The year 7's estimations won't be normally distributed. (box plots, dot plots would show this)
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The year 11's will be more accurate than the year 7s. (could see this by the year 7's having a high standard deviation)
•
If a person overestimates on a line then they will overestimate on an angle (could show this by there being a positive correlation on the scatter graph with a srcc 0-1)
•
The year 7's estimations won't be normally distributed. (box plots, dot plots would show this)